Companies like Salesforce.com use Facebook to help companies recruit new employees. The concept is simple -- software looks through the friends lists of company employees to find potential matches for positions. If your company follows such an initiative, you may need to befriend your boss to participate.
There are several pros and cons to this approach. Some companies offer referral bonuses to employees who refer friends to work for the company. With this approach, you might be rewarded if your company chooses to hire your friends. Salesforce.com uses a Facebook application -- you install it on your Facebook account and the company does the rest.
The cons are that it's invasive -- using the application gives Salesforce.com the ability to see all the information you can see on your friends' profile pages. You're giving a third party the chance to look at pages and see information that may not be public. You could land a friend a new job, but you may also lose your friend's trust in the bargain. Should your boss be able to see your crazy friends engaging in wacky shenanigans?