I think with anything you have to find something to compare it to, so you can see if it's worth using or not. Personally in my experience we have seen a couple hundred retweets on items but only seen a couple visitors from it, while at the same venue we have seen a couple hundred newspapers or bloggers cover a story and gotten millions of people visiting.
Do any of you dumbasses even have a Twitter page? No? Then shut the hell up. You don't even know what you are talking about.
I wasn't and still aren't a huge Twitter fan, but it has brought some traffic to our site so it can't be that bad...right?
I have been using twitter to get traffic to my gaming site , the traffic is not very large but do get around 50 hits daily from twits.
I agree twitter is one of the best social networking out there. Get traffic from twitter for my new site quite good and targeted! It is what I like! And it has simple systems. Just tweet and they tweet back! LOL