Don t link to the graphic on someone else s web server. You slow their machine down. When creating links to other sites check to see if they have any guidelines. Don t link to another site in such a way that it appears to be your own work. If you want to format your layout a little more, try using tables to place your graphics.
More sophisticated editors use other means, but they also cost.
Break your site into several smaller pages rather than one long page. This makes loading faster and, with appropriate links, makes navigating your site easier. Keep graphic image files small. Don t use too many animated images or other tricks. They make your site so busy that it gives some folks headaches.