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Ruby-Doc.org: Documenting the Ruby Language
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FirebirdFAQ.org - up-to-date answers to Firebird related questions
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Ebooks-Gratuit.org : Service de recherche des documents
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Org mode for Emacs – Your Life in Plain Text
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IRIB - O site do registrador de imóveis brasileiro
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Doc Database - Free unlimited pdf files search and downloads
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Doc - www.kurokatta.org