A full screen is somewhere around 640x480 pixels and a full color image that size could take as much as 500K of space and may take as long as 5 minutes to load and view. Please keep in mind that people are paying for accessing the Internet and large graphic files literally cost them time and money. The higher the number of colors, the more memory the file will use. For example, the icon on the right, when saved with a 256-color palette, requires 2,256 bytes of memory. The same icon saved in a 16-color palette needs only 257 bytes.
Smaller files mean faster page load times.
This is especially important if you use the graphics as a navigational button. Access Counters Everyone wants to know how many people have visited your site or a specific Web page. Looking around you will see lots of different types of access counters ranging from graphics that look like automobile odometers to regular numbers. Here are some sources for page counters. Once you have your site established and your pages on-line, you need to tell the world that you exist.