IDEAS RePEc: contains links to most papers, as well as info on references, citations, authors, and more. Also provides rankings of journals, academics, etc., and genealogy. IDEAS Repec also embeds links to Replication in Economics. (also, blog about RePEc)
FRED Announcement: what’s new in FRED.
Francis Diebold’s Blog (forecasting)
quant-econ a collection of codes for Economics, in both Python and Julia, run by Tom Sargent & John Stachurski. Can also be used as a self-guided course in programming for quantitative economics.