Darren Gladstone, Senior Writer at PC World, has put together "The Social Gaming Guide" for his Casual Friday column. In it he explores some of the mainstays of social gaming like the options found within Second Life and Facebook, but also sheds light on some lesser known alternatives. Gladstone discusses some of the choices gamers have with The Casual Collective, which he describes as "a cool casual-gaming waterhole created by the minds behind DTD," or Desktop Tower Defense. He looks at Whirled, an open-source gaming community which is home to Flash MMOs. "For players, Whirled is an awesome collection of hundreds of games, broken out by category and just waiting for you to jump in," Gladstone writes. Forthcoming Facebook integration will also add more dimensions to gameplay at Whirled.