This annual update is the most complete coverage of over 300 different men's and women's sports leagues from the United States, Canada and Mexico. The sports include baseball, basketball, football, indoor football, hockey, rollerhockey, soccer, indoor soccer, tennis, softball, lacrosse, rugby and others. For over 100 of the top leagues, we report on changes from year to year in the areas of league alignments, franchise movements, and team nicknames. We also report on the demise of various leagues since last season in our "No Return" sections and provide updates on possible new leagues in our "Proposed" sections. Also included are some special reports and "The Phantom Franchise List" of teams that were announced but never started play in the past year. This edition features changes for the 2012 spring-summer leagues and the 2012-13 fall-winter leagues.