New York VC on what's next: "Actually having an impact"

Union Square Ventures partner Brad Burnham — the one who isn't blogorrheic Fred Wilson — says it's time to move past startups "driven by self-expression and discovery online." In an interview with The Deal, excerpted above, he says that those kinds of companies had their day three or four years ago. Now it's too hard for anybody new to the user-generated content space to find enough users.By which the Twitter investor actually means to say: "Back off, you'll never catch us now!" to the likes of Benchmark's Peter Fenton, who just recently invested in FriendFeed. Competitive posturing aside, Burnham goes on to say what Union Square Ventures is interested investing in next: "Areas where you're actually having an impact on someone's work, someone's life, someone's real-world experience." Sounds great, but how do we Google that?