I created .wl.ws as a free "tld" for open source projects. Here are some:

1. diff.wl.ws - Pretty code diff checker
2. i.wl.ws - Quick image hosting & MOV --> GIF tool
3. ip.wl.ws - IP quality tester
4. detectbot.wl.ws - Free bot detection tester
5. banksim.wl.ws - Bank Simulation Game