There are an increasing number of good web sites on water in general. Now so many, in fact, that listing them all would simply add to the confusion. Instead, links to a short selection of them are provided below, and most of these have further links if you are motivated to dig deeper.

One of the most attractive and informative is published by the United Nations Environmental Program (UNEP). It has rich graphics, and a lot of useful information about the world's water, with brief, easy to read, text.

An excellent basic source of data on global water supplies and uses is published by Dr. Peter Gleick, of the Pacific Institute for Studies in Development, Environment, and Security in Oakland, California.

Though USA focussed, and presented in American not metric units, an excellent educational site is that published by the U.S. Geological Survey.

Also very American, but exceptional in terms of its scope and professionalism, is a site published by Gregg Eckhardt describing the Edwards Aquifer in Central Texas. The information is specific, and detailed for this aquifer that is very small in global terms, but presented in a way that ilustrates the multiple interesting facets of groundwater. Visitors to the site can read up on the history, facts, area, walks, etc - which makes it an excellent resource for researchers, students, nature lovers etc.

There is also a great web site about water in general, and many particularly Canadian water issues, published by Environment Canada.