Epinions: Water Filters and Purifiers - http://www.epinions.com/otdr_Camping_And_Hiking-Water_Treatment
Consumer-generated reviews, buying tips and advice, ratings, price information, and searchable in a variety of ways from price to product type. |
Giardia Water Filters - http://giardiaclub.com
Tips and recommendations on avoiding giardia and using water filters while backpacking, trekking and hiking. |
Outside Online - 2002 Buyer's Guide: Water Filters - http://outside.away.com/outside/buyersguide2002/water_filters/index.adp
Outside Magazine's guide to water filters and portable hydration systems, including general information plus reviews, descriptions, and photos of the gear tested by their experts. |