The answer to this question can be a site unto itself. To in which end, ScrapeBoxList.com - Ever Changing List of Postable and Auto Approve Blog URLS will probably give you the full response.
Basically ScrapeBox is a multi-purpose tool that allows you to carry out many things. The highlights tend to be that you can:
Scrape, Verify, Ping, and Publish
It allows you to scrape all the major engines to the footprints you would like. You could the post feedback to several blog systems. You can check those urls to see if your own links stuck. You may also ping urls so that google can see these. You can create a custom Feed and submit that to RSS aggregators. You can mass Page Rank Verify urls as well as utilize many filters in order to lists. Not to mention the particular extensive addon checklist which includes everything from Yahoo and google Competition Finder to be able to Dofollow/Nofollow checker to chess that you can play while you wait around. All complete with full proxies support and normal updates.