The Lewy Body Dementia Association provides general information about
the disease, support information for caregivers, a newsletter, and lots
of links.
Written by Howard A. Crystal, M.D., in 2001 (but updated more recently), this in-depth article describes Lewy body disease and the kinds of
medication used to treat it.
Technical Articles/Current Research
A great source of information is the National Library of Medicine. Enter "Lewy body disease" into the search field to find abstracts of published research articles.
The Alzheimer's Association has several message boards, including one
for caregivers and another for getting advice from care consultants (not
specific to Lewy body disease).