+Guy Kawasaki is someone you should definitely circle on Google+ if you want to keep up with the social media world. He's always got interesting links, and he posts multiple times a day (you may want to drop him into a noisy people circle). He created this great graphic to help you decide which social network to choose: Facebook, Twitter, or Google+.
Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.