• MIT OCW Economics - Over 100 courses covering all major fields of economics. Courses include prerequisites, recommended textbooks, lecture slides, and assignments. Undergraduate and graduate programs.
• edX Economics - Introductory topics, few prerequisites.
• Khan Academy: Economics - Elementary topics.

• Academic Search - Search across .edu and other educational domains. These materials are more reliable than the big Internet.
• Foundational Equations of Economics - These equations show principles behind "thinking like an economist". Graduate textbooks put these equiations in context.
• IGM Economic Experts Panel - Top economists reflect on policy-related issues. Some answers contain useful details.
• AEA Resources for Economists - A list of useful links maintained by the American Economic Association.

• RePEc - Web services for economic researchers: bibliography, blog aggregator, new working papers, software.
• Federal Reserve Bank of St. Louis: Web Services - A list of helpful services.

• IDEAS RePEc - The largest database of economics publications (2,000,000 items). Searching through papers is easier with Google: site:ideas.repec.org <search term>. Index sources mentioned below.
• NBER - Working papers by major researchers. Many of these papers get published in peer-reviewed journal.
• SSRN Economics - Working papers, no journal publications.
• Google Scholar - Searching academic literature in general. Features author pages and citation counters. If you look for economic writings only, IDEAS would be more powerful.

Datasets

• FRED2 - 380,000 (macro) time series from 80 sources. Supports plugins for importing data into Excel, Stata, R, and others. Has a mobile app.
• World Bank Data - International macro time series. Has data import plugins.
• IMF Data - The standard reference for macro data.
• Quandl - Aggregate financial and economic data from multiple sources. Some data vendors sell their data via this service. Good integration with statistical software.
• MEDevEcon - Data related to development economics.
• Monetary Economics: Data Sources - Overview of macro data sources.
• OFFSTATS - Links to official data sources by country and subject.

Search

• International Open Government Dataset Search - Over 1,000,000 government datasets. When works, this service looks like this. Otherwise, you'll see a 403 error.
• Dataset Search Engine - Google-based search over 200 data sources, including those mentioned here. You can use Google search operators here.
• StackExchange Open Data - If you haven't found the data you were looking for, you can ask it here.
• Reddit /r/datasets - One more place to request datasets.

Writing

• LaTeX - Economists write in LaTeX because it handles mathematics and references better than Word or LibreOffice. If you write regularly, LaTeX is worth learning.
  • Beamer - A LaTeX class for presentations.
  • TikZ - An extension for drawing graphs. A how-to and a manual.
• LyX - A free and simple editor for LaTeX.
• Zotero - Bibliography management. Also install (a) Zotero browser plugin to import papers from RePEc to your library; (b) Zotero-LyX plugin to cite literature easily.
• Git - A version control system. Useful if you want to revert changes done months ago or collaborate with other authors. DropBox also has version control, but Git is more explicit. A short intro. Or use GitHub Desktop if you like it simple.
• Mendeley - Bibliography management. Support synchronization on multiple plateforms: Mac, Windows, Ipad, Phone...

Computing

• Stata - An industry standard for statistical computations in economics. Free alternatives:
  • IPython - A Python-based environment. Econometric analysis is done with free packages: statsmodels, SciPy, NumPy, pandas.
  • RStudio - An R-based environment. R is the standard language among statisticians, so the R repositories often contain specialized libraries not available in other languages.
• Matlab - An industry standard for modeling and numerical optimization in economics. Free alternatives:
  • Octave
  • Julia - High-level dynamic programming language designed to address the needs of high-performance numerical analysis and computational science.
• Mathematica - Symbolic computations. Free alternative
  • Sage
• Julia - An open source scientific computing softerware.

Sharing

• GitHub - A repository for code and data. Publishing research here is not a common practice, but it's more convenient that alternatives (university home page, DropBox, etc.).
  • GitHub Pages - Simple static websites.
  • GitHub LFS - Large file storage.
• IPython Notebooks - An interactive alternative to LaTeX and Word. See examples how notebooks look like in data-science-ipython-notebooks and the gallery.

Reviews

• Most common programs used by Economists - A community-managed list of common software.
• Software for Researchers: New Data and Applications - Covers software mentioned above and some more.

• How to efficiently manage a statistical analysis project?
• RePEc Rankings by citations
  • Top Authors
  • Economic Institutions
  • Research Items
  • Software Items

• Blogs - The most popular form of self-expression among economists. The major blog aggregators:
  • EconAcademics.org
  • Economist's View - Mark Thoma
  • Grasping Reality - Brad DeLong
  • Marginal Revolution - Tyler Cowen and Alex Tabarrok
  • VOX CEPR - Members of CEPR
• Economics Blog Search - A Google-based search service for aforementioned blogs.
• AEA Blog Directory - The list of major economic blogs.
• StackExchange Economics - A Q&A website where you can ask and answer questions.
• Reddit - A popular news aggregator. Has many economics-related sections, for example:
  • /r/GoodEconomics/ - Selected pieces on economic issues.
  • /r/EconPapers/ - Discussing economic papers.
• Discord - A popular chat platform
  • Academic Economics - A community with rooms to discuss economics and help members with exercises

• University rankings - May help in choosing a college.
  • QS World University Rankings by Subject 2016 - Economics & Econometrics
  • Academic Ranking of World Universities in Economics / Business

• American Economic Association: Graduate Training in Economics - Overview of the programs, requirements, and advices to those considering a PhD program in economics.

• Job Openings for Economists - The job board by the American Economic Association.
• Econ Jobs Postings - List of academic job openings.
• Economics Job Market Rumors - List of job openings for economists. Informal.

Sorted alphabetically

• davidrpugh - Institute for New Economic Thinking, Oxford Martin School; Oxford Mathematical Institute, Oxford, UK.
• gboehl - Universität Bonn, Bonn, Germany.
• hmgaudecker - Universität Bonn, Bonn, Germany.
• jesusfv
• jstac - Australian National University, Canberra, Australia.
• mwt - Northwestern University, USA
• nathanlane - Institute for International Economic Studies, Stockholm, Sweden.
• nealbob - Australian National University, Canberra, Australia.
• robertdkirkby
• trickvi - Hagstofa Íslands, Iceland.

• EconForge - Team around Pablo Winant providing packages to solve economic models.
• economics-book - Economics Textbook (Openstax).
• econpizza - Toolbox to solve and simulate nonlinear models with heterogeneous agents.
• fecon235 - Computational tools for financial economics, Python code base and tutorials using Jupyter notebooks, includes data retrieval, graphics, and optimization.
• macro_puzzles - A list of puzzles in macroeconomics.
• pydsge - Tools to solve, filter, and estimate DSGE models with occasionally binding constraints.
• pyeconomics - Computational economics in Python.
• QuantEcon - A library for quantitative economics.
• quantecon_nyu_2016 - Topics in Computational Economics
• VFI Toolkit - Matlab toolkit for Value Function Iteration on GPU.
• zice-2014 - Course materials for Zurich Initiative for Computational Economics (ZICE) 2014.

• Deveconodata Blogspot - Development economics datasets. Updated regularly.
• Economics Games - Free online classroom games for teaching economics.
• Quantitative Economics - Lecture series by Thomas J. Sargent and John Stachurski using Python computational tools.
• Top 100 Economics Blogs - Links to popular economics blogs, with brief descriptions.