I have made a wall wisher. I think I could use this in my classroom to really teach typing skills. Since my first graders are still getting use to the computer and skills to use it, I think this would be something easy for them to do. They don't have to log in or sign up...the can go to the link and then use a sticky note to write somethings.
You can visit my Wall Wisher here
The other tool I explored was Skype. I didn't know what to link on here, but I did make an account. Today my team and I were planning and were talking about using Skype when we learn about our countries in January. That would be so fun to Skype with someone in Egypt!!