I talk a lot about the need for the right "mix" when you promote your product, business, book, whatever it is - engaging in social media is no different. To get a good result you have to find the recipe that's 100% ALL YOURS. But just like the hard-to-bake souffle, there are some ingredients I've seen in of the work of ALL successful social media contributors. Here are the components I believe you should always use for your social media recipe...and some of experts who cook it up just right. Feel free to add your favorite folks - let's get a good list going!