Zynga

With the immense success of Farmville, Zynga has decided to gift the urban users with their all new feature CityVille.

Facebook, Amazon and Zynga will invest in a fund named as sFund to develop application and services for the new generation of social web.

After a number of failing attempts to extend its monopoly over online social networking, search engine major Google was reported to be working on a new social networking project to challenge Facebook's domination in the field.