There are many different football research organizations. One that is most frequently known is the Pro Football Hall of Fame and Museum in Canton, Ohio. There is also a hall of fame that honors college football as well in South Bend, Indiana
Along with that, there is a football organization that does research about the sport as well. All aspects can be covered and determining who the greatest players were are all easily one of the most debated topics.
Here are some images of some things from the Pro Football Hall of Fame and Museum.