He's basically saying that Google needs the real time info that sites like Twitter produce, but that they don't want to rely on a third party like Twitter (whic

He's basically saying that Google needs the real time info that sites like Twitter produce, but that they don't want to rely on a third party like Twitter (which they probably would have bought if they could). He notes how Google gives Twitter a prominent space in its search results, and how that it not something they've done often in the past, and probably want to change in the future.