We all know the Internet is cool, fun and convenient--and fast becoming indispensable. What we don't know is whether Internet companies are worth the stratospheric prices they command in the stock market. That's the big risk you take in owning high flyers such as eBay and iVillage. Sure, they keep going up. But with little or no earnings, it's tough to gauge their ultimate value--and, possibly, not since William Henry Seward paid the Russians 2[cents] an acre for Alaska has a population (Internet junkies, in this case) been so thoroughly taken to the cleaners.
"Possibly" is the key word because for...