Q: What is a backlink?
A: http://en.wikipedia.org/wiki/Backlink
Q: How to use this tool?
A: Enter your sites URL and click submit, everything else will be handlded automatically.
Q: How does it work?
A: Once you enter the URL and click submit, our link building tool will start to submit your site to nearly 2,000 different websites that will provide you with free organic backlinks.
You do have to remember, that these backlinks are free, and aren't top quality, but they will certainly help your site get indexed.