How Effective Is Twitter For Asking Questions? [Infographic]
It gives an insight into what people are using Twitter for and what they are trying to get out of it.
Top of the list of questions asked are ones about product recommendations and advice, followed closely by tech support and suggestions of places to go locally.
Interesting, it is the people with more followers who are most likely to ask the questions and also those Twitter users who are likely to get the answers (click to enlarge).