This is the first time I have been introduced to Wallwisher and I love it! I think it is a great way to informally share thoughts - students might prefer to share their thoughts using this method rather than sharing their thoughts orally. Wallwisher could be utilized to brainstorm various ideas students have (e.g. Topics to write about, etc).
A classroom blog created through Blogger would be a wonderful place to record all of the events and happenings in our third grade classroom. Parents and students could access the blog to be informed of important information and events related to our class. Students can even be a part of the process to create entries, upload pictures/videos, etc.
As discussed on earlier entries, I think Google Docs would be a beneficial and interactive tool to use in my classroom.