Sometimes websites about specific topics can be intimidating to newcomers, many words and concepts can be lost to a new user and they might feel discouraged to keep on exploring the site. Glossary is a great dreamweaver extension that works by providing valuable information (words, concepts, specific ideas) as text boxes that pop-up as the mouse rools over them. These text boxes can also be moved around or closed if the user wishes so, to avoid excessive windows open on screen, keeping the website always looking tidy and professional.