Social gaming service Zynga has announced that it has completed a $29 million Series B round of financing lead by venture capital firms Kleiner Perkins Caufield & Byers (KPCB) and Institutional Venture Partners. In addition, the San Francisco-based company has acquired virtual world and Facebook application YoVille.

Founded in October 2007, Zynga provides a variety of casual online games with social and multiplayer features, such as Texas Hold'em Poker and Word Twist. The games are available on social networks like Facebook, MySpace, Bebo, Hi5 and Friendster.

KPCB partner and former chief creative officer and founder of Electronic Arts, Bing Gordon, will join Zynga's board of directors, which also includes LinkedIn chairman Reid Hoffman, Foundry Group managing director and co-founder Brad Feld, and Zynga CEO Mark Pincus.

Said Pincus: "We are excited that Kleiner Perkins and IVP are joining our terrific investor group. With this new investment, we are doubling down on social gaming, raising the production quality and scaling the infrastructure. We're also excited to have Bing, who has been an amazing contributor even before becoming formally involved, join in an even more significant way."