Like it, hate it or just plain struggling to understand it, Twitter has made a huge impact across a wide range of fields. We use it fairly heavily internally for simulated water-cooler chatter and quick link-exchange. (like any piece of sp-geek-over-engineering we also have a tweet-bot to convert tweets to emails, and convert blog notifications to tweets). It’s pretty clear though, that once we started tweeting internally, people started blogging less. There’s something liberating about saying “here’s a link”, as opposed to taking the time to formulate your thoughts into a full blown posting.