Here is a powerpoint about Racism and some events in the past which have made a significant change in our society's worldview (I believe) and I have actually gone through this powerpoint myself and I can say that it is quite accurate. I also can say that you may notice a double point in one of the slides, but it does not really make a difference to the value of this presentation. I hope you do take the time to check this out, and also I have older posts on the KKK,- a comic strip, may interest you. It is under 2010 and it is the one that is entitled:
Comics on Racism...

http://www.google.ca/urlsa=t&source=web&cd=1&ved=0CBkQFjAA&url=http%3A%2F%2Fwww.horsforth.leeds.sch.uk%2Fsubjects%2Fgs%2Fstudents%2FRacism.ppt&rct=j&q=racism%20powerpoint&ei=5FAzTebvIY66sAP13PivBQ&usg=AFQjCNGUtnMlz2bUoyH0cIAJben_VNPJuA

There is more, I just hope it works! If it doesn't work, right click on the URL and paste it onto google, it might show up and you can watch it on there:

Racism (5).ppt

http://www.horsforth.leeds.sch.uk/subjects/gs/students/Racism.ppt

Final KKK pp(monica).ppt

http://www.csub.edu/~dhall/crju477/Final%20KKK%20pp(monica).ppt

Here is an online slideshow about the KKK and please, educate yourself about KKK! And how there may be more racist groups out there, if we learn about ones now, you never know you may be able to stop them before forming. :D
(http://www.authorstream.com/Presentation/charlene_oldham-122555-kkk-influence-education-ppt-powerpoint/)

_~Dg-racism