I have been reading Groundswell by Charlene Li and Josh Bernoff of Forrester Research and thought I would share the insights I gain while reading the book.
The first insight I have gained is that there are different profiles of users of "social media". The authors have put together a way to profile based on age, location and gender (and they have a free tool on their site to do the analysis). The analysis and tool are useful for understanding what the most effective way to use social media to interact with your audience.
It is really useful to think of people's usage patterns in the way they describe. One of the big challenges of these new technologies is figuring out which one(s) will be the most effective in a given situation. This idea (and perhaps the tool) are helpful in that regard.