According to the Pew Internet & American Life Project, 83 percent of Internet users have looked online for health information. New data released by Pew this week show many people are now using cell phones to search for health information -- 29 percent of cell phone owners age 18 to 29, and 17 percent of cell owners overall. It's the first time Pew has surveyed health searches on cell phones.

"Health questions don't crop up at convenient times or in convenient places," says Susannah Fox, author of the report. "Someone has a symptom and they want to know -- right now -- what it might mean."

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