There are a number of articles on photographic projects related to the olympics, in a special issue of Visual Studies released this month. In the introduction to the issue, the editors state:
The papers and photo-essays in this issue
provide a series of shifting lenses on this complex global
event, extending the visual repertoire for representing
the Olympics and providing new insights into its
significance, local and global.
Some of the relevant articles include the following:
Photography against the Olympic spectacle
Go for gold!
Seeing Olympic effects through the eyes of marginally housed youth: changing places and the gentrification of East London