I typed that headline while shaking my head. Google+ is iterating – and integrating – quite rapidly, but it isn’t solving some problems its early adopters are encountering. Matthew Ingram agrees with Robert Scoble that it’s too hard to filter signal from noise in Google+, and that content discovery suffers. Google still hasn’t done anything with search, and relies on Circles that are people- rather than topic-centric. Twitter has similar issues. (Facebook’s discovery is at least as bad, but it’s less noisy because Facebook’s feed-ranking algorithm has a heavy hand.) I’ve advocated that Twitter use Sulia’s topic filtering for the mainstream; Google could do something similar. Here are some other ways to build a better feed.