It may seem like everyone uses the internet these days, but that is not necessarily true.

20-percent of Americans don't use it at all. That's according to a PEW internet project survey of over 2,200 adults.

About half of them say they have no need for the internet and don't think they even need to try it.

Some say they're wary of the technology. Others claim they don't like what they hear about the online world.