After scouring the Internet high and low, I've put together a very unscientific list of the Arizona Cardinals' pre-draft workouts that have been publicly announced by sources other than the team. Mind you, it doesn't include every player the Cardinals will work out so if a player isn't on it, don't get terribly upset.
From what I've found, here are the college prospects Arizona have either scheduled pre-draft visits with or will workout at another location:
Jason Verrett, CB, TCU
Jerick McKinnon, RB, Georgia Southern
Ryan Shazier, LB, Ohio State
Geraldo Boldewijn, WR, Boise State
Matt Hall, OT, Belhaven
Howard Jones, LB, Shepherd
Bruce Ellington, WR, South Carolina
Another player who has drawn the attention of Arizona leading up to May's draft is Towson junior running back Terrance West. In a draft diary for the Baltimore Sun, West wrote that Cardinals running back coach Stump Mitchell worked him out in Maryland.
“The Arizona Cardinals running backs coach [Stump Mitchell] came down here to see me and spend the day with me,” West wrote. “It was awesome. We had a good time. We knew some of the same people.”