Egyptians are horrified by the news that women have been assaulted by hordes of young men in the centre of the capital, Cairo.
The bloggers blamed the incidents on widespread sexual frustration among Egypt's youths.
Most of them cannot afford to get married and premarital sex is strictly forbidden.
One commentator said that this was evidence of the breakdown of law and order in Egypt.
Another said the state deployed the police only to suppress political dissent but could not care less about the welfare of its own citizens.
A psychologist, Amr Abu Khaleel, attributed the predatory behaviour to the possible use of drugs and the breakdown of traditional values.