Practical eCommerce: iCharts used in article on the most popular search terms in the shopping category
The Practical eCommerce staff uses Google Insights for Search data and iCharts to compare the relative popularity of the most popular shopping search terms for the last twelve months to help marketers track consumer trends and predict which keywords will be popular in the coming year.
The link to this article is here:
Practical eCommerce: Chart of the Week - Most popular search terms