The other day I found a Dutch sports photo site that I hadn't known about before. The Soenar Chamid Sportfotografie site (
http://www.sportfotografie.nl/english/) has tons of photos that I'd not seen before and a pretty nice search function, although you need to figure out the dutch words to search by event -- e.g. once I figured out that "polsstokhoogspringen" is pole vaulting, I was able to pull up 287 images.
Here, for example, is the first-ever photo that I've seen of Yelena Isinbayeva actually wearing shades over her eyes:
