I've talked to a few agencies over the years but it's never panned out, they'd have jobs for different technologies than I knew or they wanted 10 years experien

I've talked to a few agencies over the years but it's never panned out, they'd have jobs for different technologies than I knew or they wanted 10 years experience for what I did know. Can you point me to a blog post or some source of information on how to find recruiters and what to expect? I'm great at finding information about technical problems but with this I don't know where to start. Should I be sending out 10 resumes a day to anybody that comes up in a google search? Do recruiters list themselves somewhere so they're easy to find?