Really - I looked it up.
And the data was confusing, but the show wasn't bad - it even had a computer in it.
Myouterspace.com is, in the captain's own words, '... a Sci Fi Social Network for those with a passion for the arts.'
But that is exactly why it won't catch on. The reason why Facebook is so popular is because -everyone- can use it.
Originally not many people could use facebook -- it was only for people in college. There's no reason why Shatner's site couldn't include more people later, but honestly, (and as other people have already said) I don't think they needs to include everyone to be successful.
Apparently pictures of space are cool again....
What? Pictures of space are always cool!
We warn the reader in advance that the proof presented here depends on a clever but highly unmotivated trick. -- Howard Anton, "Elementary Linear Algebra"