This page collects top-level sources most commonly available to the public for independent research. Each major source will act as a heading for selected reports or data sets that are of particular interest or relevance. To be included on this page, the source must be reasonably neutral, either by presenting raw data, objective analysis, or by providing opportunity for balanced evaluations. The purpose of this page is really to collect primary sources and expert analyses so the reader is able to form their own conclusions. However, some journals and other publications are included if they offer exceptional information.