Do you enjoy reading blogs? The AMS has a few math blogs which may be of interest to students and faculty alike.
AMS Graduate Student Blog includes postings on advice for grad students, games and math in popular culture. Bonus: it’s written by grad students themselves.
On The Market: Just as it sounds, this blog is devoted to job postings and other career opportunities. Many posts gives tips on applying for positions, writing appropriate professional documents (i.e. CV) and interviewing guidance.
PhD + epsilon: Adriana Salerno blogs about her experiences in her math career – inspiring for the women in mathematics!