Athletics
Sydney 2000 Olympic Games, The year 2000 official olympic site
RunnersWorld (Top UK Runners Resource)
British Athletics Homepages, featuring links to major UK events, coaching advice and a diary of athletic events
Sports Supplements, a superb site by Richard Johnston. It's an essential news resource and supplier directory of sports supplements (vitamins etc) for bodybuilders and athletes alike. Top marks for HTML site design and content
Nike have a super cool running site with an online shop of course, you'll need shockwave to see the coolness though