We’re asking, not declaring that Facebook is joining Google’s OpenSocial. With the huge network of OpenSocial partners, namely: MySpace, Six Apart, Hi5, Friendster, Orkut, Bebo, Imeem, LinkedIn, Hyves, Ning, Xing, Plaxo, Salesforce, and Viadeo, we’re compelled to think that they should. Playing with both Microsoft and Google won’t hurt. Techcrunch even thinks that joining will be brilliant move. So we say to Mark Zuckerberg, sleep this over tonight, and tomorrow when you wake up, go join OpenSocial.