To be sure, concerns about how much personal information can be accessed on the Web are real, as advertisers, social-networking sites and even criminals look for data to use -- and sometimes abuse.

But research from Pew Research Center seems to show privacy concerns actually declining as people grow more comfortable with the internet. In a Pew survey released in May, 33 percent of respondents said they were worried about how much information is available about them online. That's down from 40 percent in 2006.

Only 30 percent of users between 18-29 said they were worried, the lowest of any age group except for people 65 and older, who may worry less because they don't use the internet much, if at all.

Again, Pew notes that not being worried doesn't necessarily mean no desire for privacy.

"It is important to note that the results from this question are not a measure of internet users' overall views on 'privacy' or the extent to which they wish to have control over their personal information online," the report reads.

"A relative lack of concern about the availability of personal information online does not necessarily translate into inaction. Indeed, many of the least concerned internet users have still taken steps to restrict what they share with others."

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