Over at ZDNet Dion Hinchcliffe has written a very good and comprehensive list of important things marketeers should pay attention to when starting a community, or even when they are already running it.
Below is a quick run down of his points, as well as my added thoughts. For the entire article you can visit this [...]

Today I read a comment somewhere (I honestly can’t remember where it was) saying in which somebody said Twitter was a waste of time as technologies like it have existed for ages, just in different forms - I believe ICQ was mentioned as an example. It could have been another thing with a few different [...]