AOL Time Warner is now being investigated by the US Justice Department. Omnicom, the world's third-largest advertising company, is also facing a host of class action lawsuits -- over a dozen at last count -- over allegations it misled investors. However, today's announcement about AOL did not seem to have an adverse affect on its already-battered share price. Shares closed up by 39 cents, or 3.61% last night to trade at $11.19, after an all-round market rally. If you have an opinion on this or any other issue raised on Brand Republic, join the debate in the Forum here.