You do not need to have students sign up for individual google accounts (though they may have one) if you want to use Google Docs with them. Schools can sign up for Google Apps for Education. It's a relatively simple process and is completely free.
3 Things + 1 to Take From This Class
1. Make your activities student centric. Use "high-tech" in conjunction with low-tech and no-tech methods to shrink your classroom.
2. Find the tech tools that work for you. You can always refer back to your Diigo list or this site when you're looking for something new, but don't worry about using every tool you've collected. Focus on the 2-3 that will have the most impact for you and your students.
3. Keep reading and Diigoing. Check your Google Reader, follow people on Twitter, Email colleagues... Never stop sculpting your trade.
TAKE A CHANCE
Try something new from time to time, fail, try again, fail, and then figure out how to make it awesome.