I saw people posting in Joomla sites with K2 installed and building backlinks. If anyone knows how this is done? The url format is "hxxp://domain.com/?option=com_k2&view=itemlist&task=user&id=xxxx" After registration in that site. You don't see any option to post article. So I guess there is a footprint by using which they are posting articles. If anyone would like to share info regarding this.