GRPN: 9.5X sales
ZNGA: 6.5X sales
LNKD: 16.2X sales
P: 8.7X sales
S&P 500: 1.3X sales.
It appears that valuations are very high right now. The stocks are down from their peaks—-in other words, investors are not at a record level of optimism about these companies. But a fair assessment is that they've gone from "Wildly optimistic" to "Optimistic."