I have questioned the value of Twitter in the past. Well, with a recent acquisition, there may be some value to using/adopting Twitter — especially if you’re in marketing, public relations, or customer service. See Mike Gunderloy’s post on Web Worker Daily:
If you’re a Twitter user you likely saw the news this morning: Twitter bought Summize. The deal, covered on the business level by our parent blog GigaOm, brings Twitter some more smart engineers and a potential route to monetization. But what does it mean to the average web worker?
WeirdGuy Creative 
Hi Eric,
This is Austin’s friend Ryan. Austin just showed me your blog and I’d thought I’d drop you a comment – this is put together incredibly professionally! My friend John and I just put a blog together (http://www.semipolitico.com) and have been playing around with using social media sites like Twitter to promote it (so far, StumbleUpon has been the most successful).
Great site – I’ve got a new blog model to aspire to!
Best,
Ryan Kane