NetZero sues Juno, alleging patent infringement

“In a move that may be the beginning of a series of legal challenges in
the already ailing free Internet access business, Internet service
provider NetZero Inc. on Tuesday filed suit against rival Juno Online
Services Inc., alleging Juno’s advertising and Web navigation window
violates a NetZero patent. Juno promptly denied the allegation and
charged NetZero is infringing one of its patents.” IDG.net reports.