Board Thread:Wiki General Discussion/@comment-4011511-20130512190856/@comment-3474542-20130515010222

If the image has a source link, then keep it. Otherwise delete it.

Official sources are:
 * farmville.com
 * (e.g. http://blog.farmville.com/ )
 * zynga.com
 * apps.facebook.com/onthefarm/
 * facebook.com/FarmVille
 * facebook.com/Zynga
 * youtube.com/user/farmville
 * youtube.com/user/Zynga
 * youtube.com/user/ZyngaFarmVille
 * forums.zynga.com/forumdisplay.php?f=91
 * twitter.com/Farmville
 * twitter.com/Zynga

These are the only addresses for official sources that I know about. I condensed the links, so you may need to look at a subdomain for that site so see information for that site. If you think you know about an official source that is not listed, let me know and I will add it to the list. Fan sites are not official sources. Zynga does not have any official fan sites.