The interesting part about SGs strategy (build, buy, or partner) is that anticipated revenues can double at any moment by simply adding acquisitions, new partnerships, and advertising features. Just by increasing traffic will increase fee structures for advertising. As SG mentioned everyone is a potential customer of the website and it's services. You, me, United States, Canada, etc., etc.
Bought in heavy on priceline.com back in April 2009 when everyone thought it wasn't going anywhere and I'm still holding every share today.
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