How To Include Attributes in the Google Product feed. 6/5/2010

Google allows product attributes to be separated from the product description and placed in their own column in the data file. Information such as "color", "age range", "MPN" and more can be included in your product data feed. Not all attributes will apply to your products, but if you have the information available, why not add it to a special column in your data feed for better retrieval by Google?

The Feed Wizards will help you extract this data from your store if it is embedded within other properties or already contained within its own custom property.

Here is a link to Google's information about attributes.
http://www.google.com/support/merchants/bin/answer.py?hl=en&answer=160085