1- Ken Rockwells megapixel myth page.

http://www.kenrockwell.com/tech/mpmyth.htm

and the film vs digital page. Very interesting!!!

http://www.kenrockwell.com/tech/filmdig.htm

2- PDA parts for Palm, ipaq and ipod

http://www.gethightech.com/Merchant2/merchant.mvc?Screen=SFNT

3- Identifont.com a place to find the name of a font when you don't know what it is.

http://www.identifont.com/index.html

4- FILExt is a database of file extensions and the various programs that use them.

http://filext.com/