A relaunched Zynga website permits players to sign in directly, without entering through Facebook, a sign of growing independence, writes Gerry Shih. Zynga General Manager Tim Catlin says that many players want a gaming identity not linked to their Facebook accounts. After years of a symbiotic relationship with Facebook, Zynga "has focused on building out features of its own such as its 'social stream,' a bar that is displayed within games to connect players to each other," Shih writes.