MIT Career Development Center
The MIT Career Development Center has a number of resources and services available to current MIT students and alumi to help in furthering their careers.
http://web.mit.edu/career/www/
MIT writing and Humanistic Studies
The program has occasionally teamed up with MIT Career Development Center to offer talks on writing papers and grants. They also have a graduate program on science writing.
Asian Scientist
Started by a former MIT Biology graduate student. While it is a site that aims to aid asian scientists, it has very good career resources and advice for graduate students and post doctoral fellows of all backgrounds.