CreditCheck.com sold at auction in New York City today for $3,000,000. Seniors.com fetched $1,800,000. And so on. Probably my favorite of the lot is Cantaloupe.com, which sold for $25,000—not bad for a melon.
[UPDATE] The Wall Street Journal (paid sub. req.) is reporting that Business.com (the business and the domain) is now on the auction block, and could fetch anywhere between $300 million and $400 million. Entrepreneurs Jake Winebaum and Sky Dayton were widely mocked for lavishing $7.5 million on a single Internet domain name — business.com — back in 1999. It was the single highest price paid for a domain name at the time.