Facebook and Zynga have just announced a five year partnership and the expansion of use of Facebook Credits in Zynga games. After months of discord, Zynga and Facebook have made peace--- at least for now. Despite Zynga's earlier frustrations and reports that it was ready to abandon Facebook, the two companies were able to agree to a "five-year strategic relationship." “Facebook was a pioneer in opening their platform in 2007 and in just three years tens of millions of Facebook users play our games every day, from FarmVille and Café World to Treasure Isle and Mafia Wars,” Zynga CEO Mark Pincus said in the press release.