We posed that question in this video to 7 college coaches, and they offered a lot of helpful tips.
One good one came from Gonzaga assistant coach Diane Nelson, who talked about the importance of including all the essential facts - height, position, club, etc. College coaches are busy. If you want their attention, get to the point.
Others offering tips here are Michigan's Erin Virtue, Purdue's Dave Shondell, Laura Kuhn -- known as "Bird" -- from Kansas, Regis' Joel List, Colorado Mesa's Dave Fleming and Colorado School of Mines' Heather Roberts.