The world’s “most valuable” Internet domain name, sex.com, went up for grabs on Thursday having fetched 12 million dollars in 2006.

“It happens very rarely that an Internet address of this calibre goes on sale,” Cologne-based Sedo said. “The sale of sex.com offers the new owner a unique opportunity to became market leader.”

Sedo, one of the world’s biggest trading platform for domain names, is selling sex.com on behalf of US firm Escom after creditors filed for insolvency protection.

Sex.com, one of the most expensive domain names in history, is up for auction, with bidding starting at $1 million, the Telegraph reports.

The domain name was last bought in 2006 for a reported $14 million, and it’s not even the most expensive URL out there !

While the current market for internet domains is nowhere as solid as it was during the dot-com peak, the market remains strong and is experiencing solid growth.

Each year tens of millions of dollars are exchanged during the resale of domains. So what are the others in the top 10?

Internet platform Sedo, which is the auction of secondary domain names, today announced the conclusion of the most expensive deal in the blast zone. Org.

According to Sedo, a domain Poker.org was sold for $ 1 million.

Company National A-1 sold the specified domain operator online casino PokerCompany.com.

Believe it or not, but Poker is becoming a serious billion dollar a year industry that spans the entire world, and easily employs more than one million people.

Toy retailer ToysRUs has paid $5.1m for the Toys.com domain name.

It is believed to be the biggest payout for a domain this year but has some way to go to beat the $14m paid for sex.com in 2007 or the $9.5m paid for porn.com.

“Toys.com is going to put them in the top search ranking and is likely to give them kudos in terms of brand recognition,” said Sedo’s business development manager Nora Nanayakkara.

For a $20 investment, Chris Clark a tech entrepreneur, made the best decision in his life. He bought the domain name Pizza.com in 1994 for twenty bucks and sold it recently for almost $3 million.

A week’s worth of anonymous bidding at an online auction site had pushed the price to $2.6 million, compared to the fact that most domain names go for around $2000, we’d say Clark has a good deal on his hands and a great pie going in his favor.