Google Trends can be accessed via
You can type product or products separated by commas and compare the search across regions, countries and languages. The feature is a coll data mining tool in the hands of the end user and business users to find trends in various countris.For example if I type PC,Mobile in the box and find trends I get a Graphical representation of the comparison of the two terms used for search across the above categories. You could know which product is better by typing two or more products in a category. Marketers can use the information to their great benefit. I think this is one servcice for which eventually Google could charge the Business Community.