This is a hot topic on Twitter today…breaking down the age group demographic of the most active participants on the micro-blogging service.  Nielsen released their findings last week on their site and you can see from the chart below that the age range most likely to be using Twitter is the 24-54 year old demo.  What’s interesting (and I mention this same data several months ago) is that the 55+ demo outpaces the % of Teen users as well.  Does Twitter have a solution to reach what most companies consider their most valuable age audience?  Time will tell – but so far, the answer is no.