Making and Argument for web2.0 Tools

In my group's discussion for class, many members brought up the fact that these tools are free.  In today's situation of education, schools need to save money in any way they can.   We could also show them examples of how they can extend learning and help them develop skills that students would need in the future.  This will show them how the tools are valuable to the students as well as the school.  I know that my administrator would value student safety, so it will be good to show how students are protected and monitored.