Even if you don't teach

I ran across khanacademy.org the other day.  I now plan to use it with all of my math students, since I have every level of math proficiency.  Check it out.  Even if you don't need or want to use it yourself, I'm willing to bet that you know someone who does.  I showed it to one of my teacher aides today and she is planning on using it with her grandson, who just started 4th grade, and her daughter, who is in college.