Just signed up.
I'm surprised I haven't heard of this before. I started using Pinterest 4 months ago to drive traffic to my men's fashion site and to date, it is one of our top referrers. I can only imagine what Tapiture will do to my site once I get more followers there. Thanks for sharing.
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Bummer that you can't customize the message sent when you invite via email. Not just a bummer, but a deal-killer, since it doesn't even show you the text it is sending to your friends.
You can customize the facebook message, but invite via Twitter doesn't seem to be working– It only returned 100 followers.
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