I have gotten lots of recruiter emails saying they saw my LinkedIn profile, which is kinda funny, since it doesn't exist.
Could just be the kinds of jobs I'm interested in.
I personally think that for software dev at least, making connections via Twitter or via friends is a better way to go for the first internship, but everyone has different paths to success :)
> Plus every career counselor I've seen has suggested it.
They're probably right, if your goal is to get a job as a career counselor.