The whole Posterous thing probably was too good to be true, and true enough it was. As of April 30, all those Posterous blogs will vanish, and that means it's time to rethink a web writer's web strategy.
Self hosting is far too much heartache and expense, so for then time being it's back to old blogger.com -- not that it is really and more 'permanent' but let's hope there's enough in it to keep Google interested enough to not wipe it out.