Let’s take a use-case example:

Ashley is an average looking 16 year-old high school girl. She hangs out with the nerdy crowd. Her interests include reading. Her favorite music is the Jonas Brothers. She’s having trouble getting over that nerd hump–and the fact that she still likes the Jonas Brothers.

Ashley has 246 friends. Not much for a teen her age. Her average time spent on Facebook outweighs others’ at 2 hours/day.

Ashley clicks on Stacy’s profile an average of ten times a day. Ashley knows Stacy through friends.

Stacy is a popular girl and hangs with the popular crowd. Stacy has 1,200 friends and her wall is always flooded with funny recollections of the previous day and photos–photo’s in which Ashley constantly browses. In Stacy’s profile, it shows that Stacy loves the band Greenday, and Stacy likes “rocking out.”

Guess what types of ads Ashley (the geeky girl that loves Jonas Brothers) will see?

Greenday ads (the band that Stacy, the popular girl, absolutely loves)

Facebook has the potential to carry this out.

via blog.rescuetime.com

The opportunity for pure evil to be done with the information Facebook aggregates is enormous, and the fact that they don’t protect their users from Facebook application developers shows they really don’t have their user’s interests at heart.

Facebook may well be the big corporate overlord we should be fearing, but we just haven’t seen it yet, and it may already be too late.

Have a nice day!

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