please ignore if this has already been posted, but thought i would mention that in conjunction with world water day, this wonderful book, blue planet run: the race to provide safe drinking water to the world, has been released for free in pdf format (not sure how long this will last):
http://www.amazon.com/Blue-Planet-Run-Provide-Drinking/dp/160109017X

Here is the direct link:

http://www.amazon.com/gp/redirect.html/ref=amb_link_6543562_2?location=http://anon.amazon.speedera.net/Books08/Blue_Planet_Run.pdf&token=F1EDD76C2915E7D44E44F9B557325F1562ED9405&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=hero-quick-promo&pf_rd_r=0XX6F1E5BECB4F60FK4T&pf_rd_t=201&pf_rd_p=377908401&pf_rd_i=160109017X

The pdf is very colourful ....

thank you for the direct link, nate. :)

indeed, geoff, some incredible photography around the globe and an informative, necessary message.

this book appears to be still 'on order' at my library, so great having an advance peek, though i'd imagine it would be fairly large for small devices. i've only opened it on my laptop.

(apologies if this should have been posted in 'elsewhere' - feel free to move thread)