After having taken the poll about using technology in the classroom on the Facebook page of the International Teacher Development Institute, I'd like to recommend my favorite web 2.0 tool that my students and I used - and liked - the most over the past year.
Wikispaces is definitely Number 1 on my list. I started using wikis three years ago, then moved from there to blogs (I tried all of them: wordpress, edublogs and blogger) and the Google sites as well. But this year I returned to the wiki - I think wikis convey the true essence of Web 2.0 - collaboration! It's amazing how easily we can work with students and teachers from all parts of the world. Even teachers who aren't tech-savvy can easily use it and keep it running smoothly. Here's my Greeting from the world wiki, which has connected more than 500 students and educators from across six continents.
In October 2011, I set up a virtual classrooms for my second-year students where we do the tasks that accompany the course book. It's called My English Class 2B and we've done quite a lot over the past two months. I have recently introduced the wiki to my first-year students as well: My English Class 1E and right now they're learning how to use it.