The world of public baseball analytics is fairly robust. There are plenty of examples of intrepid individuals pioneering new areas of research with new and old data (Voros McCracken, Mike Fast). Public baseball analysis, and the ensuing writing, has evolved into something of a cottage industry that would not be possible without the contributions of various entities.
The goal of this article is to provide a reference point for those various entities. What follows is a list of the resources, or tools, available to the general public for baseball analysis and some information about those resources. I will not claim this list is complete; if I have missed something, please comment so that I can add it to the list.