®Social Bookmark Service, if you just want to send 1 url I will to submit to the 500+ list of different social bookmarking, but if you submit more than one then I would divide that total backlink that you can reach 500 and with the same list "For example if you submit 5 urls then I will send you 1 url to the 100 list and for the other url is still the different lists and then the url will be indexed using seo link fast indexer robot pro version :-)®
