Online Job Search Tools

I've been a bit skeptical about these types of services for awhile, but I am taking the plunge and trying JobFox.  It's an interesting take (although underdeveloped) on mapping out a job candidate.  The main reason I signed up for this $20/month service, is it seems a lot of employers are using to collect resumes, and it does make it easier for me to apply for specific jobs.  My only complaint is that its decision or matchmaking system is a bit flawed or over simplistic.  Other ideas welcome.