FACEBOOK, the worlds largest Internet social network has acted to boost its games content. The move came on the same day that Google Inc introduced games on its recently-launched social network Google+. Google launched its social networking site in June, signing up more than 10 million users in the first two weeks. The company said it would offer 16 games from third party developers on Google+, including Zynga Poker, Bejeweled and the infectiously popular Angry Birds game. The game has become a blockbuster, with users downloading it 250million times to launch furious birds at egg-stealing green pigs. MO