King of Prussia-based GSI commerce exits big to eBay. eBay is plenty familiar with Philly, snapping up Half.com in 2000.

eBay has just announced that it has agreed to buy GSI Commerce, a provider of ecommerce and interactive marketing services, for $29.25 a share, or total consideration of approximately $2.4 billion. The acquisition, which will be financed with cash and debt, is expected to close in Q3 2011.

via eBay Acquires GSI Commerce For $2.4 Billion In Cash And Debt.