It works really well when you only follow people you're actually interested in. Most of the people I follow (and I only follow about 60 people) are fellow deve

It works really well when you only follow people you're actually interested in. Most of the people I follow (and I only follow about 60 people) are fellow developers, entrepreneurs, geeks, and IRL friends, and I get a lot of value out of the stuff they post. Twitter can of course be used as a PR tool as well, although I think there's a lot more room for abuse there. But I have about 1600 followers that I've gained over time from guest writing on blogs and putting my twitter name on apps and presentations and I can regularly get great feedback from my followers and sometimes some good business opportunities, too. Twitter only works, I guess, if you are interested in other people. A lot of detractors forget that you can control the spigot of information coming in, and that you can actually get a lot of value out of Twitter without even posting one tweet.