This is a very interesting few weeks of the year in the NFL. The first few waves of free agency have come and gone, but we still see a straggler free agent signing here and there. There will be another wave for currently unemployed veterans after the draft and going into training camp. Also more players will be getting released for salary cap reasons, particularly if that team added help at that position via the draft.
A big thing also happening right now is draft visits. The list of names visiting each team is of public record. In many of these cases, NFL teams need to find out more information on a player.