[ALS]

http://burtleburtle.net/bob/physics/cruithne.html

excellent animation showing the horseshoe orbit of Cruithne. Should work great for low bandwidth modems.

[Cultural Jihad]

Nice applets he designed on that page. Thanks for the link.

[billbears]

I don't understand how Cruithne could be considered Earth's 'second moon' though. From the link you provided it orbits the sun and just passes through Earth's orbit