It was started by Kevin Kelly, former Whole Earth Review magazine editor, and one of the founding fathers of Wired magazine. Today it was announced that Mark Frauenfelder, founder of Boing Boing (my other favorite blog) and editor-in-chief of Make magazine, is partnering with Kevin; he'll be editor-in-chief of CoolTools and is working with Kevin on a paper book on the best of CoolTools. This is a killer duo.
-Mark's announcement on Boing Boing here
-Kevin's announcement on CoolTools here
-The tools on CoolTools here