Updated: Sunday, 29 Nov 2009, 10:29 PM PST
Published : Tuesday, 24 Nov 2009, 11:09 PM PST
Posted by: Tony Spearman, Scott Coppersmith
Los Angeles (myFOXla.com) - Virtual worlds that cater to kids can be filled with cuddly penguins, glamorous dolls and cyber pets.
A concerned mother went undercover on these sites and says some of them aren't so innocent.
Sharon Duke Estroff posed as a tween and she discovered that some of the sites may be sending the wrong messages to children.
Watch Christine Devine's video report in the media player for more on what Estroff says she found.