And several sites charge for services that consumers can find free elsewhere.

As of 2011, the site does not charge for access and is financed through advertisements.

The site accepts advertising and will charge a fee to participants.

Since July 2010, the sites have charged for access.

And most sites do not charge viewers to see the movies, hoping instead to support themselves with advertising.

Some sites charged him money - which he says didn't make sense - since that's what he needed.

The total of $5.81 didn't seem worth selling, since all the sites charge service or listing fees.

Often, the commercial sites charge $6 to $10 a page.

Most other portal sites offer some form of online games, but do not charge a fee.

The site charged $129 to link three videos to an athlete's profile.