Links that have been living for a while in my browser tabs (or as starred posts in Google Reader):
Gulzar Natarajan: The case against lowering direct taxes in India.
Guru: How to read scientific papers; linked there is a post on cience schmience: How to make sense of a published study.
Kenneth Chang: The nature of glass remains anything but clear.
Fabio Rojas: Six questions to economists on rationality.
Kathy G: The Opt-Out Myth.
Google Blog: Googley Advice to Students: Major in Learning.