We use often our profiles of SocialNetorks like facebook or LinkeIN or even twitter as our presentaion card, and they offer the posibility of vanity-urls that allow users to send their profile in a nicer looking link.
On the other hand, users can always buy their own domains and make something as simple a frame redirection on their profiles, but thats far from the point of having a personal page.
So, Would be a business oportunity fto have vanity-domains?
LinkedIn (as example) could offer a more personaliced page than LinkedIn/in/yourusername, looking like a profesional profile on yourusername.in
(again, as example).
Wouldn't that add value to the users?, and so new way of monetizing the SocialNetworks?
and more important:
How much would you be willing to pay for somethig like this?
Looking forward to your opinions!