• ISI Master Journal List (Social Sciences Citation Index only)
• SCOPUS
• EconLit
• Repec
• EBSCO (Business Source Complete only)

Journal rankings:

• ISI Journal Citation Reports
• Scimago Journal & Country Rank
• Eigenfactor.org

• French National Committee for Scientific Research - Journal Ranking in Economics and Management
• Tinbergen Institute Journal Ranking
• Internal Kiel Institute Journal ranking
• Keele Rankings of Economics Journals

Bibliographic databases/libraries:

• ISI - Web of Knowledge
• SCOPUS

• Biblioteca do Conhecimento Online
• EBSCO
• ProQuest
• JSTOR

• Elsevier Science Direct
• Springer Link
• Taylor & Francis Journals
• Wiley Interscience

• Catbib
• Biblioteca do Banco de Portugal
• Biblioteca da Universidade de Évora

• Donald Andrews
• Manuel Arellano
• Badi Baltagi
• Andrew D. Chesher
• Jean-Marie Dufour
• Eric Ghysels
• William Greene
• Bruce Hansen
• Lars Peter Hansen
• Jerry Hausman
• James Heckman
• Joel L. Horowitz
• Guido Imbens
• George Judge
• Oliver Linton
• James MacKinnon
• Daniel L. McFadden
• Whitney Newey
• Hashem Pesaran
• João Santos Silva
• Richard J. Smith
• James Stock
• Kenneth West
• Halbert White
• Jeffrey Wooldridge

Software:

• Mathematica

• R
• S-PLUS
• Stata
• TSP International

• Scientific WorkPlace
• TeX Archive

Others I:

• Universidade de Évora - Departamento de Economia
• University of Bristol - Departament of Economics
• Universidade Técnica de Lisboa - Instituto Superior de Economia e Gestão
• CEMAPRE

• Fundação para a Ciência e para a Tecnologia

• Ranking of economic institutions and researchers in Portugal
• Within country and state rankings at IDEAS: Portugal

Others II:

• Econometric Links
• Econometric-Research Mailing List Archive
• REPEC Author Service

• JEL classification system

• Cowles Foundation for Research in Economics - Reprints
• CEMMAP
• Econometric Society