http://www.monito.com/index.html
Monito.com focuses on Wankel Rotary Combustion Engine hydrogen-hybrid. As
cluttered as the site is its page on hydrogen powered engines is technical and
informative while providing links to exhaustive academic FAQ pages
like: www-formal.stanford.edu/pub/jmc/progress/hydrogen.html . Most of
the
information concerns the research by Mazada in the field of hydrogen power.