Just checked her site and it's really good. Thanks for the tip.
I have found one interesting tip regarding braces, brackets and parantheses. While I use all three of them all the time, she says that brackets and braces are seldom used. Moreover, she asserts that most probably many of readers have never used braces. And she is right. Just shows how different the world seems to her compared to what it seems to me.
Her blog covers English usage and grammar issues in simple, "quick and dirty" tips. So you'll usually get a quick explanation of why something works the way it does, and then get a quick tip explaining how to remember it.
I also bought her book (which is just collected posts from the blog.)