Mathematics Associations

• MAA Students Chapter — American Association for Math students
• American Mathematical Society (AMS) — more research-oriented
• Mathematical Association of America (MAA) — more education-oriented
• European Mathematical Society (EMS)
• The Egyptian Mathematical Society (ETMS)

Math queries, open problems, puzzles

• Mathworld — math queries
• Problems & Puzzles - Open Math Problems
• Interactive Math Miscellany and Puzzles — varied

Mathematics Reviews (professional); available only through the AUC network

• American Mathematical Society. Reviews Search
• Zentralblatt fur Math. Reviews Search

General Math Info (mostly professional)

• Mathweb
• European

Actuarial Science Related Links

• American Society of Actuaries (SOA)
• American Casualty Actuarial Society (CAS)
• British Institute of Actuaries/Faculty of Actuaries
• International Actuarial Association (IAA)