This resource is very informative about GIF and JPEG image formats. The presentation of pros and cons as well as similarities and differences was well done. Howerver, some of the information (especially concerning browsers and interlacing) is dated by the May 1997 date the information was developed. I would use this site for students familiar with using images in HTML. The author's early remark is important: "It is assumed, or is at least quite helpful, that you have prior working knowledge of graphics design and image manipulation software applications and some familiarity with the GIF and JPEG image file formats."