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1. Principais notícias

   • 

     Pedágio automático Free Flow chega às rodovias paulistas

     Embora seja um sistema muito eficiente, o Free Flow é alvo de muitas reclamações por falta de informações de pagamento para os motoristas

     Jornal do Comércio

     6 dias atrás

   • GZH

     Cobrança de pedágio no sistema free flow na Serra e no Vale do Caí será retomada no sábado | Pioneiro

     7 dias atrás

   • techtudo

     Trabalho remoto fora de casa? Saiba como proteger os seus dados

     7 dias atrás

   • Investing.com

     Free flow na BR-101 tem 10% de inadimplência no 1º ano, menos do previsto; CCR quer ajustes Por Estadão Conteúdo

     7 dias atrás

   • 

     Estadão

     Pedágio free flow vai começar a operar em SP; rodovia do interior terá primeiros pórticos

     7 dias atrás

   • 

     Correio do Povo

     Chuvas no RS: free flow terá cobrança retomada neste sábado

     7 dias atrás

   Ver tudo

2. unpaywall.orgUnpaywall

   unpaywall.org

   Unpaywall is a nonprofit project that collects and provides access to over 50 million free scholarly articles from various sources. You can use Unpaywall's data through an extension, an API, or a library system.

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     Search all 120M of our articles, by title. Show only...

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     Frequently Asked Questions What articles can Unpaywall find?...

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     Unpaywall is a project of OurResearch, a nonprofit building...

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     The REST API gives anyone free, programmatic access to the...

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     Contact. Thanks for your interest in getting in touch! We'd...

3. doaj.orgDirectory of Open Access Journals – DOAJ

   doaj.org

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   DOAJ is a free index of open access journals and articles from 134 countries and 80 languages. You can search, browse, and access millions of quality content without fees or registration.

4. openaccessbutton.orgOpen Access Button

   openaccessbutton.org

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   Research. Free, legal research articles delivered instantly or automatically requested from authors. Try it now How it works. Always have the button by your side, no account needed. Get the Chrome browser extension, no sign up required. Free, legal research articles delivered instantly or automatically requested from authors.

5. www.scienceopen.comScienceOpen

   www.scienceopen.com

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   ScienceOpen provides researchers with a wide range of tools to support their research – all for free. Here is a short checklist to make sure you are getting the most of the technological infrastructure and content that we have to offer.

6. scholar.google.comGoogle Scholar

   scholar.google.com

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   Google Scholar provides a simple way to broadly search for scholarly literature. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.

7. about.jstor.org › oa-and-freeOpen and free content on JSTOR and Artstor - About JSTOR

   about.jstor.org › oa-and-free

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   How to find the millions of journal articles, ebooks, images, and other media available on JSTOR and Artstor as Open Access or free to everyone.