[link|http://www.google.com/search?q=bile+soluble+fiber+cholesterol&hl=en&lr=&ie=UTF-8&start=10&sa=N|http://www.google.co...F-8&start=10&sa=N]

Here's some of the more authoratative hits:

[link|http://www.cami.jccbi.gov/AAM-400A/FASMB/HOP/just.htm|http://www.cami.jccb...ASMB/HOP/just.htm]
[link|http://www.ext.colostate.edu/pubs/columnnn/nn980610.html|http://www.ext.colos...nnn/nn980610.html]
[link|http://www.emory.edu/EMORY_REPORT/erarchive/1996/May/ERmay.6/5_6_96wellness.html|http://www.emory.edu...6_96wellness.html]