Once you link your AdWords and Google Analytics accounts, you'll be able to easily analyze AdWords data in your Analytics reports. For example, you'll be able to compare bounce rates (percentage of visitors who view only a single page) or time spent on site by campaign. This will help you better optimize your ad efforts based on user engagement.
The following are a few key Google Analytics definitions you'll need to know as you analyze reports:
Pages / Visit: The average number of pages a user visits per session.
Avg. Visit Duration: This specifies the length of time a visitor stays on your website.
% New Visits: The percentage of visits from the first-time visitors who have never been to your website before.
Bounce Rate: The percentage of visitors who view only a single page. For example, a visitor who clicks on your ad and leaves after a few seconds without viewing any other page but the...