Aquascams 
(Also known as Aquaschemes or Aquaquackery.) A retired chemistry professor's critical take on commercial products and nostrums relating to water.
http://www.chem1.com/CQ/Cluster Quackery
The offending section of the website.
http://www.chem1.com/CQ/clusqk.html
North Texas Skeptics
Clustered water: analysis of the claims.
http://www.ntskeptics.org/2001/2001january/january2001.htm#cluster
Clusteredwateronline.com
Apparently Cellcore's new site.
http://www.clusteredwateronline.com/
Clustered Water --- Or, is it Snake Oil?
Personal experiences and commentary on the issue of the benefits of magnetized water.
http://www.blessedquietness.com/journal/theworld/cluster.htm
