I think they have a great idea. The Five Blondes are five sisters from our area and they all have a common hair colour [... umm ...not brunette]. They have teamed up to create a common blog and photo sharing site. Sometimes it's hard to keep up enough blog material when you are the only one working on it. By teaming up the Blonde Sisters (not their real name) are able to keep their blog dynamic, varied and interesting.
Very cool idea.
For more on the Five Blondes: