* Understand that wordpress pings automatically when content is added -- I found in wordpress / thesis under settings -- "cbnet ping optimizer" which is a list of about 100 places to ping when content is added new Well if it is pinging every time I add new content to this list why then should I submit to rss directories separately. * I am trying to understand the value in submitting to rss directories, is there any seo / link building value or traffic generation value with rss submisssions or a waste of time * IF there is value then Should I submit to Rss directories but only to top ones or should I submit too as many as possible with page rank > 3 to get backlinks from them and traffic * Are submitting to rss directories the same as blog directories or is it different * After submitting to many rss directories any reason why to have thesis / wordpress ping directories every time a new post is added, should I delete cbnet ping optimizer if I submit to many rss directories