Topic: Anyone keeping track of games played eg. at work?

[LaustN]

I have build a page for keeping track of games. It allows you to...

Create a collection of games
Add participants to the collection
Add games played to the collection
Allows opponents to accept or reject an entered score
Rate players in the collection using an Elo baesd system
See your rating development over time on a graph

...and a few more things. The site is located @ http://grudgekeeper.apphb.com/
There are no adds on the page, and it costs me nothing to run it, so the only gain for me in this is seeing my brainchild being of use. Give it a shot and please let me know if you spot something you'd like to see improved.