IndexKings.com (minimum 5000 backlinks )247backlinks.info (1000 backlinks ..I guess)freebacklinktool.com (500 backilnks, quality )linksoar.com/index.php?ready (don't know about them)marketingblogonline.com/autobacklinks/backlinkgenerator.net/webmasterdeck.com/tools/wsbacklinker/