Eric Schmidt made a nice observation in a lecture tonight:
If you give your child an unusual name, they'll have a higher page ranking…
And as a responsible parent, you should certainly buy them their domain name as a christening present, I guess.
If you don't want to be too blatant, you could go half-way. Give them an available Twitter handle as a middle name, say, which would be OK at least until their wedding day.
“Wilt thou, Catherine sexygirl482 Jones, take this man to be your lawful wedded husband?”