VoxEU (rss): Economics Research, mostly focused on Europe, but some general research.
Nada Es Gratis (rss): Focus on Spain (in Spanish; an English version exists for some posts).
The Upshot (NYTimes) (rss): Focus on US. Unfortunately they now mix political news into the economic news.
The Economist – Graphic Detail (rss): Daily Graphs
Bob Solow articles on various topics.
Rss reader: I use feedly to read blogs.