"Basecamp":http://www.basecamphq.com/. A simple web-based project management system. From a web-design company. There really is a big future in these kind of simple weblications.
"Tong's Basecamp":http://tong.projectpath.com. I did a quick site, put Ludwig and Zagula on it with the usual user names and passwords.
A nnice product that make it possible is from
Ruby. An interesting programming environment.
Will be fun to visit with them on "June 25":http://www.37signals.com/workshop-062504.php. $400 per head, but could be kind of interesting.
Interesting to see how many people have tried to build small and simple products and could be interesting.