Aise Johan de Jong's HomePage
Igor Shparlinski's HomePage
Daniel Murfet's HomePage
Andrew Granville's Home Page
Mathematics Students Resource
Dr. Macauley's Home Page
Skybert's World
John Baez
Peter Woit
Vikaly Parnas
蔡醒诗
Jonny Evans
Clark Barwick
Sam Barr's Website
pseudonymous
Tom Fangrow
Paul Graham's homepage. I like his blog What You'll Wish You'd Known.
Tim Hosgood