Here are some of web typography related bookmarks (for future reference)…
Article – The most popular fonts for the web:
http://www.inspirationbit.com/16-best-loved-font-bits-in-web-design/
Typetester: http://www.typetester.org/
About font stacking:
http://unitinteractive.com/blog/2008/06/26/better-css-font-stacks/