The future of eco-skyscrapers?

http://www.inhabitat.com/2010/03/10/10-mw-skyscraper-generates-renewable-energy-from-the-wind-and-sun/

You've heard of the tallest skyscraper... How about the deepest waterscraper?

http://www.inhabitat.com/2010/03/09/underwater-skyscraper-is-a-self-sufficient-city-at-sea/

free seismic design guide for masonry buildings

http://www.ccmpa.ca/DownloadSeismic.asp

how tall is a tall building?

http://www.ctbuh.org/HighRiseInfo/TallestDatabase/Criteria/tabid/446/Default.aspx

and... how to calculate the height of a tall building when only the story count is known:
http://www.ctbuh.org/HighRiseInfo/TallestDatabase/Criteria/HeightCalculator/tabid/1007/language/en-GB/Default.aspx