You do not have to give us personal information to visit our Web Site, download our publications, use our e-mail communications, or any other feature. We collect no personal information about you when you visit our sites unless you choose to provide this information to us. We may use the information that you voluntarily provide to us to notify you of selected content changes or new publications. We may also use it to conduct statistical analyses of user activities in order to measure user interest in the information we provide and how we provide it. However, we do collect and store some non-personal information automatically.

What We Collect and Store Automatically:

• Name of the domain from which you access the Internet (for example, xcompany.com, if you use a private Internet access account, or yourschool.edu if you connect from an educational institution's domain).
• The page from which you came and the pages that you access.
• Date and time you access our Site.
• Internet address of the web site from which you linked directly to our Site.
• Your system's IP (Internet Protocol) address.
• The type of browser and operating system you used to access our Site.

We use the information we collect in aggregate to count the number of and types of visitors to the different pages on our Site and to help us make our Site more useful to visitors like you.