Farmville has more users than twitter, but it's more addicting than fun (gamasutra.com)

Good article. But... while the article states that Farmville spreads itself "throughout your social network innocently" ... I don't know. It seems that there is a lot of (for lack of a better work) begging related to this game. "Does anyone need a horse?" "Can someone look after my crops?" I can't say I understand how this might help one's social network, and therefore, how "innocent" this might be.