Articles
Workshop Notes: Greywater Systems, Harvesting Rainwater and Composting Toilets
Midwest Alternative Energy Fair, June, 2006 by Natalya Lowther

Falling water tables
by Lester R. Brown, President Earth Policy Institute

Resources
Lawrence Recycles rain barrel info
Though an ancient practice, rainwater collection is seeing a resurgence in popularity.

Buy a rain barrel in KC
Rain Barrels - Make Your Own!