Look up forums and societies in the field as well, usually you can find long directories of companies that way. It's just a #s game.
I know the feeling, I found a job in about 4 months thankfully, my now wife took over 2 years from graduating with her first bachelors to getting a job in her field of study. Another friend of mine is coming up to the one year mark, working a part time gig in his field. He can't find full time work.
Competing fresh out of college against people with college plus a decade of experience willing to work for peanuts to put food on the table is not a fun time at all for new grads.
This is a REALLY good idea.