Google meint, dass man wohl alles in Google Base reinstellen kann. 

Google hat folgende Beispiele gelistet:

Examples of popular item types:
• Events and activities
• Hotels
• Housing
• Jobs
• Personals
• People profiles
• Products
• Reviews
• Recipes
• Services
• Vacation rentals
• Vehicles
Examples of other interesting item types:
• Reference articles
• Business for sale
• Wine and food
• Book descriptions
• Company profiles
• Jewelry
• Software
• Games