Also, you appear to think @@@.@ is a valid email address, not to mention the empty string. Makes me wonder if you think SQL injection is a valid email address too.
"2001: The financial woes of Mercata, which lets shoppers band together to get discounts on items by purchasing them in bulk, are just another sign of how cash-strapped Internet companies are having a hard time getting investors to come back to the trough. It also marks another investment by Allen's venture firm, Vulcan Ventures, that has folded its doors."
I worked on another boom-era company with the same idea: actbig.com. And just recently here on HN someone posted http://groupon.com which is part of this most recent round o' startup frenzy.