Uber, the "find a taxi" app, has been priced at around $18bn based on a recent funding deal. Now, while I have an awful track record for pricing the latest internet fad, $18 bn does seem a little steep for a company that will, perhaps, earn $200 million in a good year.
Using the flawed Price/Sales ratio as a valuation metric, Uber's valuation is about 90 times revenue. To put this in perspective, Facebook and LinkedIn are around 12 times.
It will be entertaining to see how this one plays out.