UPDATE at 5 p.m.: GunBroker released a statement saying, “We want no part in the listing on our web site or in any of the publicity it is receiving.” See full article here.
UPDATE at 2:25 p.m.: The GunBroker.com website is live again, sans Zimmerman auction. The Facebook page is also working, although the last post was on May 10.
UPDATE at 11:18 a.m.: The auction site that George Zimmerman was using to sell his gun, is now showing up with an error message. GunBroker.com stopped working just after 11 a.m. ET, and the site’s Facebook page also shows an error message.

Screenshot of GunBroker.com.