Google announced it has added an "attribute recommender" feature. The new feature will help sellers who list items individually on Google Base by helping them avoid creating custom attributes in cases where pre-defined, more commonly used attributes already exist. Google said the new feature will encourage standardization across attributes that are included in Google Base, making items easier for searchers to find.

According to the Google Base blog:

"Here's how the Attribute Recommender works. First, you select your item type. We'll pre-populate the form on the next page with a few of our defined attributes, and list other attributes on the right-hand side of the posting form. You simply click on an attribute in the list and we'll add it to the form. Finally, just go ahead and add your value. That's it!"

http://googlebase.blogspot.com/2006/12/new-attribute-recommender-for-single.html