I need help from tutorial gurus

Hello,

My project Icon tutorials database is coming along nicely, I have added more than 200 tutorials and a few people have submitted their tutorials themselves *yeay*. Lots of people are visiting and that makes me do snoopy dances.

Now I would like to arrange the Static Icons tutorials into more categories than just the three I have now (People, Objects, With Text) *btw I know  those are stupid categories but I really didn't have any other ideas at the time*

So before I make any more stupid categories I came to ask for help from the tutorial masters. I know you have a better overview on the tutorial making and how the tutorials could be divided.
Please help me out with ideas on how to arrange the tutorials *puppy eyes*

Thank you!