My grandaughter was on the moshi-monsters web site the other day and wanted to cut and paste a particular moshi as she proceeded to do this what came on screen was explicit sexual material! I have informed the Moshi Monsters site. So hopefully this will not happen again.
The web address for this horrible stuff actually contained the Moshi words and the name of one of the characters. So glad her mother and myself were in the same room as my grandaughter and could deal with it promptly.
No matter how careful we all try to be and what safety precautions we take obviously this stuff does sometimes get through so just be aware mums when your children are on this site in case it has not yet been dealt with.