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IBM is facing an antitrust inquiry from the U.S. Department of Justice for recent actions the company has taken in the mainframe computer market, according to the trade group that filed the complaint. The DOJ has begun issuing formal requests for information related to a complaint filed against IBM in September, the Computer and Communications Industry Association said. The association alleges that IBM has refused to issue licenses for its mainframe OS to competitors, as required in a series of actions the DOJ took against IBM dating back to the 1970s and earlier. In some cases, IBM has yanked the OS license from customers trying to switch from IBM mainframe hardware to a competitor's, the CCIA said.

The Bahama botnet, a sophisticated network of compromised computers that is wreaking click-fraud havoc among advertisers, is also snatching away Web traffic and revenue right from under the nose of mighty Google, Click Forensics said Thursday. As part of its design, the Bahama botnet takes search engine users to a fake page hosted in Canada that looks just like the real Google page and even returns results for queries entered into its search box. However, the results aren't direct links to their destinations but are instead masked cost-per-click (CPC) ads that get routed through other ad networks or parked domains, some of which are in on the scam and some of which aren't.