How far online CV database are genuine?

FOR IMMEDIATE RELEASE
(Free-Press-Release.com) February 1, 2007 -- Today it�s a big market for job boards or jobsites to sell online cv/resume database to job seekers or recruiters. But the big question is really these resumes are effective for a buyer?
A recent study shows, many recruiters or employers fail to get satisfactory results from these CV/Resume database purchase. One told he selected few profile, but they are not interested, another told her selected candidates email address is not working. Even one told he selected few people but they are complaining against spamming mails sent by the recruiters.

May be this is happening because there is no such updating system available for jobseekers to update profile time to time. Study shows around 3-4% jobseekers really feel interested to update profile time to time.
Director, Jobquest International Jobs (www.job-quest.net) mentioned that they are no more selling their vast online database to clients, besides use them internal marketing. They created there Job board paid, initially they feared to make this paid to loose viewer, but they found their viewers are increasing every day. They are helping their subscribers to apply for jobs listed at Jobquest. Using vast network of sourcing agents they generate good number of candidate per job listing.