Tips for Undergraduates:

ND's information on preparing for graduate study in economics

Another opinion (Harvard's information to undergrads interested in graduate school for economics)

Online guide to writing in Economics: Sections 1 and 2 will be useful to anyone doing any writing in an economics course. Sections 3 and 4 apply to writing longer economics papers.

Tips for Graduate Students:

Subscribe to eTOCs for AEA journals: Get emails listing the papers in the current versions of all AEA journals.

Subscribe to free NBER emails: The NBER Digest and Reporter are free and contain summaries of recent work by NBER affiliates. Working paper emails require an NBER login.

List of general interest and applied micro journals: On John Kennan's website. Easy to peruse tables of contents.

Keeping up with Stata

Links for extra-curricular economics reading:

Economic Scene - A main source for economics news in the NYT, even if it is in the business section.

Economix - The New York Times economics blog.

Visualizing Economics - Too many interesting charts and graphs to list. You may waste a lot of time here, but you'll learn a lot too.

TierneyLab at NYT - Usually worth reading. Good for game theory and behavioral topics.

An important take on economics from America's finest news source. (Not sure how long this link will last.)