I've written about 43 Things before. It's a site that connects people who want to do things with people who have already done them.
Via Justin Johnson, I found out there's a sister site 43 People where you say who you'd like to meet and who you've already met.
If you're on the site already and you've met me, look me up.
There's also 43 Places. No prizes for guessing what that's about.