Google has 10 million active users of its online Docs and 500,000 businesses, Product Management Director Matt Glotzbach said Thursday.

Hundreds of thousands of them are paid users, Glotzbach said at the Office 2.0 conference in San Francisco.

“Adoption is skyrocketing,” he said. “We’re seeing 3,000 new business sign ups everyday.”

Glotzbach said the Docs usage appears to be driven by increasing interest in cloud computing, where computing services are available over the Internet. Google’s Docs offer a variety of online “cloud” services from e-mail to providing word processing, spreadsheets forms and Web pages where users starting this week can post video.

People are increasingly interested in collaborating and communicating with co-workers and friends around the world, he said.

Google recognized this interest in designing its Chrome browser, which was unveiled this week. Chrome can create desktop shortcuts for Web services and will run Web applications written in JavaScript faster than other browsers, he said.

By Mark Boslet, Editor at Large.