UnJoin.com -- Unjoin or Un Join
For Sale at Go Daddy:
Some days, we feel like unjoining Facebook and Twitter...
But for a commercial venture, this would be a great name for a law firm specializing in divorces, unjoining those who want to be put asunder.
Possible Slogan:
For you who erred
in wedded haste,
let us unjoin you
and put you asunder.