Links
Inernet is full of liquid cooling reviews, most of them are cooling kits reviews that only cool the processor. I've also found many amateurs like me, that have made waterblocks or even full circuits. I've chosen these ones for their good technical level.
General Water Cooling Equipment and Performance Guide
Water Cooling Equip. and Performance Guide - Fluids
Water Cooling Equip. and Performance Guide - Pumps
http://www.directron.com/waterinfo.html
This web is done by a crazy guy that compares all sort of cooling devices (especially fans) and many other things, is worth:
http://www.dansdata.com/coolercomp.htm
A good web about modern art
The most beatifully engineered waterblock I've ever seen
http://www.3dnet.hr/dr-ice11-en-01.html
Some water cooling forums
In this forum you'll find all "science" about cooling
http://forum.oc-forums.com/vb/forumdisplay.php?s=&forumid=94