"My close friends from high school, mostly the wedding party at my wedding, are hoping to return to [party town] this year to celebrate [wife] and I being married for five years. Anyway, I'm looking for a site where they can all be members, we can chat about who wants to drive, who wants to get hotel rooms, etc. . . and then possibly have an ongoing survey to see where the next get together will be. "
Now, I'd probably just use eVite myself, because I already know about it. But perhaps some of you have used other sites to this end and have better ideas. I promise I'll give you full citation for the advice.