[canistr]

Messenger and Marketplace are insanely successful. You have to be willfully blind to not see it.

[taeric]

Messenger feels fair, if an odd choice. I mostly loathe how much effort companies seem to be going to in order to lock in their users to message only with each other.

I am curious on statistics of the marketplace. I confess I've never used it and I'm not at all clear on who does.