This service may bring out the headhunter in everyone. Match up your colleagues on LinkedIn and Facebook with available positions (currently tech related) and you could be rewarded with serious cash. Just make sure to share.

LinkedIn has recently changed their privacy policy to allow people, products or services that you have recommended on the site to use your name and photo unless you opt out. If you'd rather remain private, find out how to change your settings. (Note: LinkedIn is said to be considering changes based on user backlash.)