If you're using Google Adwords , you might find this article to be important. Did you know the entire interface for Google Adwords has changed? It's quite nice in our opinion.
"Google released the latest version of AdWords Editor this week with several new features, including the ability to download search terms reports, more robust filtering options, account-level extension associations and more."
Adwords is a great platform for driving traffic. You can do it for a few pennies if you know what you're doing.