creative_craig - 3:07 pm on Sep 13, 2011 (gmt 0)
Most will be done via 3 way link exchanges and I bet it would be surprisingly easy to get that many backlinks;
- Build a list of target sites - lets say 500 (trawl through Dmoz, web directories, Google search results)
- Use a crawler to visit each of the target sites looking for link exchange type pages with an email address
- Write up email requesting a link to site A and in return they will get a link from site C
I bet most of this can be done in one morning once you know what you are doing. All they need to do afterwards is check their throw away Gmail account for replies and add links to one of their many crappy web directories they own when needed.
There you have it - 100 crappy off target links :)