Every time you update your LinkedIn page, recruiters throw themselves at you, matching your profile to whatever search keywords they have configured. Some of them turn out to be clueless, some of them turn out to have bad opportunities available, but some of them turn out to be surprisingly savvy and have access to good jobs.

I just recently got a new job that I think it's pretty good, and I didn't have to submit a single "blind" application. All of my interviews came through recruiters via Linkedin.

It's a relatively low effort way to have a steady flow of opportunities, one of which might turn out to be good once in a while.