As I have been reading the text, Web 2.0, it has opened my eyes to a lot of new technology that could improve the classroom. 
For example podcasting lets the teacher upload lectures so the students can replay them for review or homework and it even includes the students by letting them create their own podcast as a way of sharing their ideas and opinions.
Another example are the electronic portfolios the students use to showcase ongoing work.  This allows them to see the intellectual growth they have made.
Some more examples that can be used in the classroom are the 3D modeling, spreadsheets, video showcasing and social bookmarking.