Web Fontology

Joe Gillespie : Web Page Design for Designers - Typography
Good typography is just as important on a web page as it is in any other medium an extensive site on fonts.
http://www.wpdfd.com/wpdtypo.htm

Matthew Lee : Typography for the Web of Information
Understanding the purposes of the web, and using creative design appropriately.
http://www.vistaseeker.com/art499/

Your Guide to web fonts
The Web Designer’s Guide to Font Replacement Methods
webdesign.tutsplus.com/articles/typography-articles/a-web-designers-guide-to-font-replacement-methods/

Robert Bringhurst : Typography on the Web
Teach the elements of typography to professional and amateur web experts who wish to improve the readability and the aesthetics of their web site.
www.goodreads.com/book/show/44735.The_Elements_of_Typographic_Style