As consumers flock to the cloud computing world to store photos online, back up hard drives or use Web-based e-mail, many harbor worries about the security of that personal data, according to a study released late last week from the Pew Internet & American Life project.

The study found that 69% of online users use Web e-mail services, store data online or use Web-based applications like Google Documents.

Breaking cloud computer use down further, the survey found that:

* 56% of online users use Web e-mail services like Hot Mail or Gmail
* 34% store photos online
* 29% use online applications like Google Doc or Adobe Photoshop Express
* 7% store personal videos online
* 5% store computer files online
* 5% back up hard drives online.

More than half (51%) of the active cloud computing users say they turned to the technology because it is easy and convenient, while 41% said they like having the ability to access their data from multiple computers.

Despite those advantages, the survey found that:

"Even as large numbers of users turn to 'cloud computing' applications, many may lack a full understanding of possible consequences of storing personal data online," said John Horrigan, associate director of the Pew Internet & American Life Project and author of the report, in a statement. "These findings give consumers, the technology community, and policymakers a chance to discuss the trade offs between convenience and privacy and figure out where there are needs for education to improve public understanding."

Pew surveyed 2,251 adults in April and May of 2008; of those, 1,553 were Internet users.

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