Webmaster - Publisher, Editor, Designer, Writer, UNIX geek, Programmer and reluctant Business Manager Hits refers to the total activity for a site. This number is used to impress people but is an admittedly inflated value. Page Views is a more realistic number. That is the number of page accesses. This number is not inflated.
Unique visitors is a minimal measurement of activity.
This is the number of different individuals to visit. These are good faith estimates based on past performance and achieved by selective logo placement. This is the number of times users have the opportunity to see a banner on GridScape in an average month. The numbers may be significantly higher or lower depending on whether it is during the football season or not. This is just an average.