More adults are using Facebook every day now, and the hard evidence is finally here. Mashable published a post this week citing an analytics report from iStrategyLabs that indicates Facebook’s userbase is growing increasingly older.

As you can see in the chart below, the 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%.

The real value of Facebook for the adult crowd is realized when they put their companies online. This is the way to actually capture a share of all these users, give them your business. With a business profile on Facebook, known as a Facebook Page, everyone online can become a Fan of your business. Think of it as Word-Of-Mouth on steroids, Facebook users proclaiming a relationship with your brand, for ALL of their friends and family to see!