sign up (free!)
Also on these boards
31 Great Counting Books for Kids ~ Includes info about each book. (Free listing from No Time for Flashcards.)
Run and Count is a game we use to practice counting, and get more familiarity with numbers. It very easy: I give the kids cards with varying numbers of stickers on them, the kids count the stickers on the cards, and then run and find the stick that corresponds to.