I don't know but I'm guessing recruiters have access to some sort of algorithm on who's a likely target based on what skills / projects you have listed on your

I don't know but I'm guessing recruiters have access to some sort of algorithm on who's a likely target based on what skills / projects you have listed on your LI. The recruiter spam I get is much more on target after I "cleaned up" at least. The reason I get so many Java offers is because my area is very Java/C# rich, and since I may one day want to work with Java/C# again I've kept them on my LI profile, at least it's relatively easy to filter out. The actual "job" site of LinkedIn is terrible for me though. It's probably because I worked in the public sector and was involved with medical software, but LI seems to think I'm a doctor, a nurse and a firefighter (for whatever reason) at the same time.