What it is: The world's largest resume pool; a place to read career-oriented blogs and news articles.
Best business uses: Hiring; networking to reach potential clients.
Who should use it: Everyone, especially B2B companies looking for new customers.
How to maximize your reach: Establish relationships with high-quality potential hires before you're actually hiring, said DiNardo. Join a few LinkedIn(LNKD) groups that relate to your company or market. Once you've established yourself in a group, work to answer questions and foster conversations, which will boost your reputation as an expert and help others get to know your company.
How not to use it: Don't spend too much time pitching your products or services.