The negative connotations of the title don't do any justice to all those networking sites just lurking around in the Net. Still they deserve special mention on this blog.
There are a great deal of social news sites on the internet, sometimes too many. Most of them are dormant and are no longer active, largely because they were poorly marketed and hence, never had an active community of users in the first place.
For instance, this webpage has a list of over 380 social news sites. Most of them are a waste of your time: they are riddled with spam or are so ill-promoted that they’ll never attract a critical mass of viewers or social news participants.