Citing a more challenging consumer environment, greater customer-acquisition costs and investor reluctance to pay above-market prices for shares, Goldman Sachs today cut price targets for Internet stocks including Google, eBay, and Amazon by 10 percent. For more reasons why Wall Street is suddenly less impressed with your tech stock portfolio, see Goldman's entire report, embedded here:

[Update: Agh, we're two weeks behind with this news. Damn it, our staff sent this Internet to us and it just arrived...]