Adknowledge, one of the largest multi-channel ad networks in the world, has recently launched a new customizable ad unit for Facebook and MySpace application developers.

Called “integrated ads,” the new ad unit lets developers choose the size, look, and feel of the ad unit however they want. This leads to a better user experience overall, and up to 2x the lift over traditional performance ad units, according to the company. Currently, the ads are live in Facebook apps like Owned and Farm Town.

AdKnowledge has been in acquisition mode over the last year and a half, having acquired Facebook ad network Cubics, Lookery‘s social network ad network operations, Adonomics‘ Facebook ad network, and most recently, MIVA. Managing Director John Cole says the company is still on the lookout for companies in the space to add to its portfolio.