I did some research and here's what i found

http://www.ecobusinesslinks.com/links/sustainable_building_supplies.htm

http://74.125.47.132/search?q=cache:PYGp_PdUG9IJ:www.ecohousingindia.org/downloads/EcoFriendlyMaterials_may05/Eco-Friendly%2520Building%2520Materials.pdf+eco-friendly+materials&hl=en&ct=clnk&cd=8&gl=us

http://www.iaaf.org/index.html

http://en.wikipedia.org/wiki/International_Association_of_Athletics_Federations

http://en.beijing2008.cn/spirit/movement/if/n214068296.shtml

http://www.skyscrapercity.com/showthread.php?t=715478

http://en.wikipedia.org/wiki/Atteridgeville_Super_Stadium

http://cedb.asce.org/cgi/WWWdisplay.cgi?9804074

http://www.exploresouthafrica.net/2010soccerworldcup/stadiums.htm

http://www.wheelchairbk2008.org.cn/en/general/2008-01-20/25854.html

http://www.greatbuildings.com/places/london.html

http://en.wikipedia.org/wiki/Architecture_in_London

http://googleanalitycs.info/search.php?q=london%20architecture

www.newlondonarchitecture.org/

http://www.architecturefoundation.org.uk/

http://en.wikipedia.org/wiki/London

http://www.woodlands-junior.kent.sch.uk/customs/questions/

http://www.visitlondon.com/

http://www.msnbc.msn.com/id/26095123/

http://www.schneier.com/essay-053.html

http://www.globalsecuritychallenge.com/2008/06/2012-olympics-budget-to-rise-a.html

http://www.interpol.int/public/ICPO/speeches/Beijing20070910.asp

http://74.125.47.132/search?q=cache:sTGCw3Ky0_cJ:www.engsc.ac.uk/downloads/Balance/schools_Claughton.ppt+engineering+requirements+for+olympics&hl=en&ct=clnk&cd=3&gl=us

http://www.go-explore-trans.org/2009/jan-feb/engr_olympics.cfm

http://pubs.acs.org/cen/science/86/8630sci3.html

http://jobs.trovit.co.uk/jobs/civil-engineering-olympics