Our approach to web design is to make the website as intuitive and easy to use as possible. A common measure for this is click count. How many clicks does it take for you to get to the information you are looking for. Anything more than three is considered too many and will likely drive traffic away from your site.
Dropdown menus are a great way to give your users more information without forcing them to click and change pages. Simply hovering the mouse over a certain part of the screen will bring up a new box of links. Try for yourself in the example to the right.
Another advantage of dropdown menus is that they automatically categorize information, another incredibly useful tool for your users. They will use the relevant dropdown menu.