what I would love to see is nice recommendation engine in the background which would notify all the job seekers and startup employers to get what they want. It

what I would love to see is nice recommendation engine in the background which would notify all the job seekers and startup employers to get what they want. It has to be accommodating enough to return varying results depending on the interest of the technology,location etc. It is there in some of the existing job portals but some unique ways 1.which would be more effective even in case of huge data set. 2.To arouse interest in people who are registered there but not actively seeking jobs. 3.where people would like to get co-founders/collaborators. I know it is easy to think but hard to implement and that too within fixed scope of time and motivation :) Let me know your thoughts on this