European online advertising network and marketing firm AdLink Group, part of Germany’s ISP firm United Internet, has been put up for sale, possibly to a U.S.-based company, reports Frankfurter Allgemeine Zeitung, picked up by AFX. (The German language story is here). The story says UI is hoping for a triple digital millions from the sale…Adlink is valued at about 400 million Euros, while 84.3 percent is owned by United Internet.

SEE ALSO: AOL Acquires Affiliate Marketing Network Buy.at

AdLink also owns Sedo, the online marketplace for buying and selling domain names and websites; and Composite Digital, a provider of e-mail data and profiling tools.

The company has hired Morgan Stanley,  the U.S. investment bank in a deliberate attempt to find an American buyer, the story says. My guess is AOL, which has been trying to buy a European online ad operation for a while, might be a buyer. It tried to buy TradeDoubler for $900 million early last year but withdrew its bid after shareholder opposition. Then later it bought Adtech AG, an international online ad-serving company based in Frankfurt, Germany, and then earlier this year announced buying UK-based affiliate marketing network Buy.at.