Your career is too important to spend your time looking for a job on a variety of sites. If you were sick you would find the best possible doctor. You should do the same thing with your job site. There is no better job board in the world for legal professionals: LawCrossing shows you jobs from every single employer career page, job website, association website
It's not who you know but who you are willing to know. Become active in professional, social, civic organizations. Meet as many people as you can and get the word out.