Browser- A software program that allows users to access the Internet. Some examples are: Internet Explorer, Firefox, and Netscape.

Bookmark- a way of storing your favorite sites on the Internet. Browsers like Netscape or Internet Explorer let you to categorize your bookmarks into folders. 

Hyperlink- Text, images, graphics that, when clicked with a mouse (or activated by keystrokes) will connect the user to a new Web site. The link is usually obvious, such as underlined text or a "button" of some type, but not always. 

Cookie- Information (in this case URLs, Web addresses) created by a Web server and stored on a user's computer. This information lets Web sites the user visits to keep of a user's browsing patterns and preferences.  People can set up their browsers to accept or not accept cookies. 

Blog-  information that is instantly published to a Web site.  Blog scripting allows someone to automatically post information to a Web site. The information first goes to a blogger Web site.  Then the information is automatically inserted into a template tailored for your Web site.

Firewall- A computer "firewall" is a barrier that protects your computer from the outside world.