The above are a series of data visualizations for my Twitter account showing some of the types of traffic that one can expect there. I find Twitter especially useful for listening, hearing that back chatter that sometimes revolves around a subject. Sometimes you connect here as opposed to other place and it can be quite meaningful. A data visualization will help you see where that information falls down in clusters. Who is connected to who? All that sort of jazz.
The above are Facebook visualizations from a now defunct service, apparently. Either way, interesting to note in Facebook how groups are formed. I can see my Korean friends, work friends, hometown friends, college friends and more forming here with minimal overlap. Quite interesting. I think the whole experience has made me miss a few people, but that is a post for another day.