This is a tough question for me because I really don't know that much about the online recruiters. However, I doubt that whether the recruiter is virtual or live makes much of a difference - both are trying to find lawyers who satisfy the requirements of client law firms, and that's why associates who haven't worked for at least two years generally don't make the cut.
One word of caution: Please know where your resume is going when you work with a faceless, nameless recruiter. I cannot tell you how many resumes I receive each week that have absolutely nothing to do with my searches or clients -or even the legal community. I believe you are best served by networking, knocking on doors and keeping in constant contact with your law school career services office. I hope this advice helps.