This post has been changed to correctly reflect Ian Rogers' title at Yahoo. He was vice president of video and media applications at Yahoo.
Also corrected was the number of users queries: ChaCha has completed more than 600,000 queries since it launched in January.
Click here for updated post.
This story incorrectly stated that Creative Artists Agency and Major League Baseball had invested in Weplay.com. They are only partnering with the site.
This article incorrectly described a second antivirus partnership. The Anti-Malware Testing Standards Organization also includes independent testing labs.
Due to an editing error, when this story was initially published, a promo on the News.com home page inadvertently used a photo of John Battelle without attribution to the photographer, James Duncan Davidson. That photo no longer appears on the News.com site.
This story initially misidentified Mel Karmazin. He is the CEO of Sirius Satellite Radio.
The headline on this story was corrected to indicate that the research stems from nanotechnology.
Read the corrected gallery here.
This post was updated at 10:15 a.m. PDT to correct the spelling on Anup Murarka's name.
Read corrected post here.