Google has been testing a form of related or search refinements for brand searches for several months now. But now I am seeing a new refinement that adds Stores and Types to the Brand refinement.
I was able to replicate it for the search [diamonds] and [cameras]. Here are screen shots:
The refinements are simple, you click on it, it replaces your search for a combination of your current search and adds on the keyword(s) from the refinement you selected.
A WebmasterWorldthread has one member liking this, saying "Way to expand Google...I like this!" Truth be told, in my opinion, Google is now promoting big brands on two levels and then allowing further refinements, through the type selection. But the two top links are brands and then stores and to fit within either of those sections, you got to be big.
What do you think?
Forum discussion at WebmasterWorld.