[mutual_likes]

Sorry, but don't despair! Facebook did the same to a project/idea I started because they didn't. I thought about giving up, but they didn't implement it exactly as my site. I should be glad they made it because it was something I wanted and they could make it faster. If Wolfram Alpha didn't implement what I wanted with this, I hope yours does.

[ninetax]

Thanks! There are definitely some features missing here that I would love to see. I'll keep working on it!