I just set up one additional web tool for use in my classroom. Poll Everywhere will be one tool that I will use for quick, informal assessments for students. I also like that students will be able to use their cell phones or they can grab an iPad2 to respond.
I have also decided to use one other web tool, Posterous, as our e-portfolio/website for students'. It truly has the best iPad2 app for uploading pictures!
While I am trying to stay within apps on the iPad2 or Google Apps for Education for educational purposes, I will use these two resources in my classroom.