Working with students and Internet issues

I am curious about how teachers have worked with students online. While I know a majority of my students have myspace accounts, I have heard several parents' concern about their children talking with others online. I would like to know how secondary teachers have worked with this issue. Publications or personal accounts on this topic would be helpful.

Introduction

Here goes....This is my first blog. While this is a class requirement, I am excited to experiment with this. I'm curious about two things. What are possible classroom applications? How many people are responding to blogs? I look forward to developing my blog and exploring other people's blogs.