[particular subjects] [journals] [books] [places, conferences & videos]

• Mathematical Reviews:
  • MathSciNet [subscription required]
  • MR lookup
  • reviews submission
  • Exceptional Math Reviews (compiled by Martin Kimball)
• Zentralblatt: [search] [Jahrbuch search] [reviews submission]
• arXiv:
  • submit, localtime, email (un)subscription
  • to see, for example, all Commutative Algebra submissions for Oct 2009: http://arxiv.org/list/math.AC/0910
• Mathematics Subject Classification
• Springer's (former Kluwer's) Encyclopedia of Mathematics, an augmented translation of the Soviet Mathematical Enyclopedia (1977-1985).
• The Mathematical Atlas by Dave Rusin.
• This Week's Finds in Mathematical Physics by John Baez.
• Tricki - collection of math problem-solving techniques by Timothy Govers & Co.