Were you one of those persons searching for a Joost , Babelgum or Pownce invite when it was hard to get a private beta invite? Do you like to try out new webapps before they go public? If so, you need to sign up for InviteShare. At InviteShare, they gather the most popular web apps in private beta and let its users add their e-mails to the list. Once people get invites, they share them with others who are part of the InviteShare membership.
Check it out at InviteShare