By Robert Half International
For busy workers, networking online is a great way to quickly meet dozens -- or even hundreds -- of like-minded professionals. It also can be an option for those less inclined to reach out and socialize with new business contacts in a traditional setting. Web sites like LinkedIn.com and MeetUp.com, as well as industry conference discussion forums and trade association chat rooms, are making it easier for people to expand their professional networks. But, if you do not use these portals wisely, you can make mistakes that will shrink rather than supersize your base of contacts.