13 writers and 10 publication entries researched. This is a growing directory, not a complete roster.
Opinion writers
Celso Rocha de Barros
Folha de S.Paulo / piauí
Folha political columnist; piauí biography identifies him as Oxford sociology PhD and Foro de Teresina presenter.
politics · democracy · public affairs
Where to find their work
Foro de Teresina — searchable transcripttranscriptPublisher-hosted discussion transcript with Celso’s named turns; a text alternative to audio, not a solo written column.
Full sample readable in primary-source retrieval · August 2026
piauí contributor archiveauthor archiveContributor bio and article index open; full magazine articles may require subscription. · Archive includes February 2026.
Transcript is searchable written text, not an authored essay. No personal blog or free solo-column archive verified.
publisher verified · Checked 2026-10-26
Demétrio Magnoli
Folha de S.Paulo / Interesse Nacional
Socio-political and international affairs columnist; Interesse Nacional profile documents Folha/O Globo columns and GloboNews commentary.
politics · democracy · public affairs
Where to find their work
Open journal essayarticleHistorical foreign-policy essay; not claimed current.
Full signed text readable in web retrieval without account; browser access may vary. · January 2014.
Verified author/source route, not a ranking. Full-text and historical limitations are recorded per channel. No paywall bypass used.
publisher verified · Checked 2026-10-26
Eliane Brum
SUMAÚMA
Journalist, essayist and SUMAÚMA cofounder whose work joins Brazilian politics, climate and Indigenous rights.
politics · democracy · public affairs
Where to find their work
SUMAÚMA — author archiveauthor archivePublisher author index readable; this does not establish free full text. · Archive checked October 2026.
Open political essayarticleArchive page two is a verified Portuguese route; site also offers translated editions.
Full signed text readable in web retrieval without account; browser access may vary. · February 2, 2026.
Verified writing archive — Eliane Brumauthor archivePublisher’s Eliane Brum archive includes written and video commentary. RSS creator fields name site editors; visible archive bylines identify Brum. Also has historical personal blog feed, latest July2023.
Public RSS/Atom metadata verified; individual article access may vary. · Not established
Eliane Brum — personal blogpersonal blogHistorical personal blog; latest July 2023. Own biography identifies the journalist. This archive does not follow her newer SUMAÚMA work.
Public RSS metadata verified; individual article access may vary. · Historical archive
Identity / source evidence Verified author/source route, not a ranking. Full-text and historical limitations are recorded per channel. No paywall bypass used. Feed research update, 26 October 2026: additional verified publishing channels are linked above; their notes supersede any earlier no-find statement for those specific sites. RSS headline availability does not establish free access to every article.
publisher verified · Checked 2026-10-26
Elio Gaspari
O POVO / Folha / O Globo
O POVO biography identifies Gaspari as a journalist and syndicated columnist for O POVO, Folha de S.Paulo and O Globo. His work covers power and political history.
politics · democracy · public affairs
Where to find their work
Open sample — 1964… 2014articleFull essay attributed to Gaspari, ending and author note visible.
Full sample readable in primary-source retrieval · 1 April 2014
Original Folha historical columnarticleO POVO archive is explicitly labelled an exclusive area. No free alternate archive verified.
Publisher search verifies byline and article; full-text browser access not established. · March 2016.
Historical journal archive; do not imply a current personal newsletter or current free syndicated column.
publisher verified · Checked 2026-10-26
Igor Gielow
Folha de S.Paulo
Special reporter and analyst. His old column archive contains a suspension notice; do not describe it as a verified active recurring column.
Geopolitics · Conflict
Where to find their work
Verified writing archive — Igor Gielowauthor archiveHistorical Folha feed named Igor Gielow, latest June2025. Contains at least one article by Igor Patrick among its items; not exclusively Gielow. Keep source-supplied bylines and warning.
Public RSS/Atom metadata verified; individual article access may vary. · Not established
Identity / source evidence Feed research update, 26 October 2026: additional verified publishing channels are linked above; their notes supersede any earlier no-find statement for those specific sites. RSS headline availability does not establish free access to every article.
publisher verified · Checked 2026-10-26
Janio de Freitas
Poder360
Publisher bio identifies a veteran journalist formerly at Folha (1980–2022) and now a weekly Poder360 commentator.
politics · democracy · public affairs
Where to find their work
Poder360 — author archiveauthor archivePublisher author index readable; this does not establish free full text. · Archive checked October 2026.
Current signed columnarticleFull signed text readable in web retrieval without account; browser access may vary. · October 23, 2026.
Verified author/source route, not a ranking. Full-text and historical limitations are recorded per channel. No paywall bypass used.
publisher verified · Checked 2026-10-26
Juremir Machado da Silva
Correio do Povo
Established Correio do Povo newspaper blogger and author on society, media and Brazilian politics. Publisher maintains a named blog archive.
politics · democracy · public affairs
Where to find their work
Matinal — author archiveauthor archivePublisher profile links current columns and identifies journalist/PUCRS professor. Weekly newsletter explicitly exclusive to paying plans.
Public archive; mixed access; newsletter subscriber-only · October 2026
Open sample — Uma vida sob censuraarticleFull memoir/opinion on ideology, censorship and journalism available in publisher retrieval.
Full sample readable in primary-source retrieval · 12 June 2024
Useful open historical writing and current discovery index; Matinal’s weekly Juremir newsletter is expressly paid, not an open newsletter.
publisher verified · Checked 2026-10-26
Leonardo Sakamoto
Repórter Brasil / Brasil de Fato
ABRAJI identifies him as UOL political columnist and president of Repórter Brasil.
politics · labor · human rights
Where to find their work
Repórter Brasil / Brasil de Fato — archiveauthor archiveBrasil de Fato author index indexed publicly but reader returned 402, so access unconfirmed. Repórter Brasil sample is a signed institutional essay, not a daily political column.
Search-indexed author archive; reader returned 402. Full-text access not verified. · Sample April 2026.
Read a samplearticleBrasil de Fato author index indexed publicly but reader returned 402, so access unconfirmed. Repórter Brasil sample is a signed institutional essay, not a daily political column.
Signed substantial sample prose visible in search; direct browser playback/access not separately checked. · Sample April 2026.
Blog do Sakamoto — historical archivepersonal blogHistorical Blog do Sakamoto feed; latest December 2019. This does not follow his newer Brasil de Fato work.
Public RSS metadata verified; individual article access may vary. · Historical archive
Selected as an established commentator, not a ranked top list. Brasil de Fato author index indexed publicly but reader returned 402, so access unconfirmed. Repórter Brasil sample is a signed institutional essay, not a daily political column. Feed research update, 26 October 2026: additional verified publishing channels are linked above; their notes supersede any earlier no-find statement for those specific sites. RSS headline availability does not establish free access to every article.
publisher verified · Checked 2026-10-26
Luís Nassif
Jornal GGN
Founder/director of GGN, with 50+ years in journalism and awards listed in his publisher bio.
politics · economy
Where to find their work
Jornal GGN — archiveauthor archiveSearchable/browsable archive; sample access is checked separately.
Public index; does not guarantee every linked item is free. · Sample October 2026.
Read a samplearticleAn example of this writer’s work, not an endorsement of its claims.
Full article text returned by web reader without an account; browser/geographic access may vary. · Sample October 2026.
Selected as an established commentator, not a ranked top list. No independently verified personal newsletter found in this bounded pass.
publisher verified · Checked 2026-10-26
Merval Pereira
O Globo
O Globo political columnist and editorial council member, identified in his publisher profile.
politics · democracy · public affairs
Where to find their work
Open sample — O papel da mídiaarticleFull signed essay about media, state power and freedom of expression.
Full sample readable in primary-source retrieval · 5 June 2012
O Globo — author archiveauthor archivePublisher author index readable; this does not establish free full text. · Archive checked October 2026.
ABL-hosted column archiveinstitutional archiveInstitutional alternate route; archive page five is the verified working URL.
Academy index readable; individual checked article failed retrieval, so full-text access not claimed. · Index includes February–March 2026.
Historical journal alternative verified. Newer ABL archive remains available, but an individual recent sample was not verified in this pass.
publisher verified · Checked 2026-10-26
Míriam Leitão
O Globo
Longstanding O Globo columnist and economics/politics commentator; publisher bio records her work across Globo radio and television.
politics · democracy · public affairs
Where to find their work
O Globo — author archiveauthor archivePublisher author index readable; this does not establish free full text. · Archive checked October 2026.
Open ABL-hosted columnarticleAuthor’s academy hosts the signed O Globo text; no newspaper paywall bypass.
Full signed text readable in web retrieval without account; browser access may vary. · October 6, 2026.
Verified author/source route, not a ranking. Full-text and historical limitations are recorded per channel. No paywall bypass used.
publisher verified · Checked 2026-10-26
Reinaldo Azevedo
Metrópoles
Political columnist with a current named Metrópoles section; older work remains at UOL and Folha.
politics · democracy · public affairs
Where to find their work
Metrópoles — author archiveauthor archivePublisher author index readable; this does not establish free full text. · Archive checked October 2026.
Older UOL column archiveauthor archivePublic search-indexed archive; full-text limits unverified. · Index has January 2026 entries.
Current Metrópoles columnarticleFull signed text readable in web retrieval without account; browser access may vary. · October 2026.
Verified author/source route, not a ranking. Full-text and historical limitations are recorded per channel. No paywall bypass used.
publisher verified · Checked 2026-10-26
Vera Magalhães
O Globo
Political journalist; publisher bio identifies her column, Roda Viva anchoring and CBN commentary.
politics · democracy · public affairs
Where to find their work
O Globo — author archiveauthor archivePublisher author index readable; this does not establish free full text. · Archive checked October 2026.
Public CBN commentary episodeaudioAudio alternative, not a written newspaper-column archive.
Official episode page and descriptive text indexed publicly; audio playback not tested. · Historical October 2023.
Verified author/source route, not a ranking. Full-text and historical limitations are recorded per channel. No paywall bypass used.
publisher verified · Checked 2026-10-26
Publications
Folha de S.Paulo
Newspaper · Portuguese
Publisher directory and author profile returned in search
Established national-news browsing destination; broad politics/public-affairs coverage. Priority is editorial judgment, not measured audience size.
verified directory · Checked 2026-10-26
O Globo
Newspaper · Portuguese
Blocked by publisher robots.txt; inherited shortlist
Established national-news browsing destination; broad politics/public-affairs coverage. Priority is editorial judgment, not measured audience size.
research lead · Checked 2026-10-26
Estadão
Newspaper · Portuguese
Blocked by publisher robots.txt; inherited shortlist
Established national-news browsing destination; broad politics/public-affairs coverage. Priority is editorial judgment, not measured audience size.
research lead · Checked 2026-10-26
Metrópoles
Digital publication · Portuguese
Official contributor or opinion destination readable; not a guarantee every article is free.
Established national-news browsing destination; broad politics/public-affairs coverage. Priority is editorial judgment, not measured audience size.
verified directory · Checked 2026-10-26
Interesse Nacional
Journal · Portuguese
Official contributor or opinion destination readable; not a guarantee every article is free.
Commentary, investigative, journal, broadcast or specialist reading destination; influence is distinct from general-news reach.
verified directory · Checked 2026-10-26
Poder360
Digital publication · Portuguese
Official contributor or opinion destination readable; not a guarantee every article is free.
Commentary, investigative, journal, broadcast or specialist reading destination; influence is distinct from general-news reach.
verified directory · Checked 2026-10-26
SUMAÚMA
Digital publication · Portuguese
Official contributor or opinion destination readable; not a guarantee every article is free.
Commentary, investigative, journal, broadcast or specialist reading destination; influence is distinct from general-news reach.
verified directory · Checked 2026-10-26
piauí
Magazine · Portuguese
Official contributor or opinion destination readable; not a guarantee every article is free.
Commentary, investigative, journal, broadcast or specialist reading destination; influence is distinct from general-news reach.
verified directory · Checked 2026-10-26
Correio do Povo
Newspaper · Portuguese
Official contributor or opinion destination readable; not a guarantee every article is free.
Rio Grande do Sul-centered general newspaper, with wider coverage.
verified directory · Checked 2026-10-26
O POVO
Newspaper · Portuguese
Official contributor or opinion destination readable; not a guarantee every article is free.
Ceará-based regional flagship with broader digital reach.
verified directory · Checked 2026-10-26