I don't know anything about the blog against racism, but we as a family had a long talk about the history of prejudice and race relations just today. I think it's not a bad idea to raise consciousness. Much of the prejudices we have are not evil, many are just subconscious. (eg, you tend to want to be around people who are just like you--in making decisions who to have as friends or even employees)

Yes, we should do it all the time!