Furthermore, most providers allow a certain amount of bandwidth before charges apply, and this minimum level is often much higher than your site is going to generate even in your busiest months. An image which has multiple hot spots on it which link to different pages. For example, it might be a picture of several people setup so that clicking on a persons face takes you to a web page about that person. Image maps can be done on the server or on the client, and each has its pros and cons. However, not all browsers support client side image maps.
Many more browsers support server side image maps.
They may provide things like counters for your web pages, or response forms to get feedback from visitors. Often providers will have several cgi scripts already installed on their server ready for you to use. While all servers support cgi scripts, many providers restrict users from installing their own. This is generally due to the potential harm that a cgi script could do to the server. However, this needn't be the case, and many providers allow you to install your own scripts.