CNET Networks said it plans early next year to offer a music upload and download destination for independent artists on its newly acquired MP3.com Web site. CNET earlier this month agreed to acquire the online music site MP3.com from Vivendi Universal for an undisclosed price. According to Forbes, as part of that agreement, the MP3 site, which hosts music from 250,000 mostly unsigned artists, will shut down and the material on the site will be destroyed.