What are the best ways to begin using what we have learned in Web 2.0 in the classroom?

Now that I have completed my assignments, I am wondering just how to incorporate all that I have been learning into my math classes. I am curious as to how best begin to use this new learned information in my classroom when I know that I have one computer.... it is almost impossible to get time in a computer lab, and many of the students I work with not having computer availability at home. I have learned many great ways to incorporate learning, build on ideas being taught, and great ways for students as well as instructors to communicate more effectively amongst each other, yet because of lack of technology in the learning environment, hard to harness. Curious as to what best way to begin.