The phrase you're looking for is "embrace and extend"

The phrase you’re looking for is “embrace and extend”

First, Gowalla now lets you broadcast your checkins on not only its app, but Twitter, Tumblr, Facebook Places and Foursquare as well. Gowalla even lets you earn Foursquare badges and Facebook Deals through the iPhone app. As an added bonus, Gowalla also pulls in Foursquare Tips whenever you check in.