If you’re job hunting, there’s no question that you need to be on LinkedIn. With more than 225 million users worldwide, the power of LinkedIn as a networking venue is undisputed. As noted recently by Forbes magazine, it is clearly “the most advantageous social networking tool available to job seekers and business professionals today.” But to truly optimize the value of your LinkedIn presence, you need to go above and beyond membership and join groups, which are specifically designed for sharing professional information, job listings and related discussions. Options include job search groups, college and alumni groups and groups tailored to individual professions [...]