Analytics company iStrategyLabs has examined the demographics stats from Facebook (Facebook)’s Social Ads platform, and they’ve reached some very interesting conclusions. Facebook’s userbase, as a whole, is getting much older very fast.

Facebook's overall number of users between 18 and 24 years of age has grown only 4.8% between the fourth of January and the fourth of July of 2009. In comparison, the number of users aged 25 – 34 has grown 60.8%; the number of users aged 35 to 54 has grown 190.2%, while the number of users older than 55 years has grown a tremendous 513.7%.