"Microsoft will spend $300 million to promote the launch of the latest version of its MSN Internet browser and services later this month, the world's largest software maker says. The print, radio and broadcast advertising campaign is aimed at convincing consumers that MSN 8's newest features will make it easier for users to manage e-mail, protect their PCs from viruses, handle digital photos and browse the Web, the software giant said on Monday."

More from Reuters, and Microsoft's press release.