IN INAPPROPRIATE CELEBRITY ENDORSEMENT NEWS "Microsoft’s new $300 million advertising campaign has been kept tightly underwraps but word has spread that Jerry Seinfeld will be one of the key celebrity pitchmen. The Wall Street Journal reports that Seinfeld will appear with Microsoft Chairman Bill Gates in ads and receive about $10 million for the work. The new ad effort is expected to use some form of the slogan 'Windows, Not Walls,' several people familiar with the matter told the Journal. The campaign, said to debut Sept. 4, is one of the largest in the company's history."