To develop your staff notation reading skills try the note reading game Vic Firth’s Speed Reading Game. This is easily the best single way to memorize the note positions on the staff.
To read more about staff notation, Musictheory.net has a clear, easy to understand tutorial on the basics of reading rhythm and Vic Firth has a great guide to reading rhythm. Vic Firth also has some great printable worksheets that really help learning to read as well.
Theta Music Games: This site is full of some really great music games. They are mostly designed for pitch ear training: recognizing pitches, intervals and chords by ear. While drummers mostly don’t play pitches, recognizing pitches by ear is a very useful skill drummers should nurture.