I've often wondered why the "related" function on Google always returns 31 results. For example if I enter related:www.google.com, related:www.cnn.com, related:www.amazon.com or related:www.myowndomain.com I always get 31 sites that Google says are similar.
I'm sure that the forum members are very busy discussing the latest update but this has been lurking in the back of my mind for some time and I had to ask.