For the last year as a boys team (U16, U15), you will find floorball drills at Flrball.com. Floorball drills for U16 (U15), have a larger element of game moments (break outs, forecheck, transitions, 1 against 1, 2 against 1, 2 against 2 etc.).
Buy the floorball books from online bookstores like Amazon, Wallmart, Alibris, AbeBooks, Bokus, Bookshop, BoD etc. or search through Google