LinkedIn is the social hub for business professionals.  The site now has over 45 million members in over 200 countries and territories around the world (LinkedIn Press).  According to LinkedIn, a new member joins LinkedIn approximately every second, and executives from all Fortune 500 companies are LinkedIn members. If you are not familiar withLinkedIn, see the introductory video below.

LinkedIn links me to a vast number of qualified professionals and experts.  While it is great to have tons of LinkedIn connections, another LinkedIn feature that I believe has been underexplored is the fact that you can join many LinkedIn groups.  LinkedIn Groups is your destination to find and join communities of professionals based on common interest, experience, affiliation, and goals. Stay in touch with organizations, schools, and companies that you are and were a part of, network with professionals with similar interests and goals, and collaborate in a professional community online.  In this post, I will sort through 30 top LinkedIn groups that allow great efficiency for all entrepreneurs, marketing professionals, and social media enthusiasts.

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