Sometimes, you generate interest by simply not saying anything.  All it takes is one person to be excited about the unknown, and that excitement can spread.

I don’t know anything about Wendr.  In fact, here’s everything I know:

That’s my old friend from New Orleans, Marc Calamia, seeming to be excited about Wendr.  I clicked through and landed here:

They’ve told me nothing.  No reason for me to join.  But also, no reason for me not to.  So naturally, I signed up.

Sometimes we just want there to be more cool things, and we’re willing to give up an email address to hear about them.  Moral: Don’t underestimate the fact that people want to like things.