So many awesome tools and so little time! My biggest advice to you is this. Don't think you have to try all of these at one time. Instead choose one that looks interesting to you and try it out for a couple of months. If you love it, use it. If not, try another. There are so many tools that do similar things, but with their own take. So make sure you investigate different ones to see what fits into your classroom. Check out my Survival Tip #1 for more information.