In addition, our site uses third-party software to analyze the web pages within our site that your computer visits. This information, called ""clickstream data,"" is associated with your computer's IP address. We do not associate clickstream data with your name, mailing address, or any other personal information. We collect clickstream data to analyze which portions of our site draw the most traffic so we can improve performance of our site. We also may track how many recipients of our e-mail newsletters click through to other sites. This clickstream data may be shared, in aggregate and anonymous form, with third-party advertisers. We do not associate clickstream data with personally identifiable information. 