> Meetup, Evite, probably many more in this space. All you need to invite someone is an E-mail address. I could use one of those to plan an event, but there's

> Meetup, Evite, probably many more in this space. All you need to invite someone is an E-mail address. I could use one of those to plan an event, but there's no way that I can force people to use them to invite me to and event they're planning instead of Facebook. If they choose to use Facebook, I'm not getting an invite unless I have a Facebook account. My solution to that problem is to leave up a vestigial Facebook account that I never use and very obviously communicates that I no longer use the site. It contributes to the impression that Facebook use declining and ensures I won't miss anything.