Christopher Berg was lucky enough to be snag a free Beagle Bone Black at this year's Bay Area Maker Faire. He rushed home with his tiny, free, open-source computer and got to work.
Crhirstopher notes that many of his projects revolve around his family. In this case, it was a project for his wife. She's an author who just finished her first novel and thought it might be cool to be able to track the amount of "likes" her Facebook page gets. Each little tick on the counter is a helpful ego boost to keep you going when writing gets tough. Christopher made this idea a reality with a bright green, 4 digit, 7 segment display. He queries Facebook every two minutes and pushes the new number to the display.
He admits that the beagle bone black is extreme overkill for such a simple task, but having the onboard ethernet really made things simple. Keep in mind that the tiny computer can run a full operating system, so who knows what other features he may be able to get going when given the time.
If you would like to replicate what he has done, or just learn some of the nitty gritty details of his code, you can see it all broken down in this forum post.