Personal Identification Information (Email)We may collect personal identification information from Users when Users register on the site to subscribe to the tutorial resources, and in connection with other tutorials, services, features or resources we make available on our Site. Users may be asked for an email address. Users may, however, visit our Site anonymously. We will collect personal identification information in the form of an email from Users only if they voluntarily submit such information to us. Users can always refuse to supply personally identification information, except that it may prevent them from engaging in certain Site related activities.