Composting:  http://muextension.missouri.edu/xplor/agguides/hort/g06956.htm

Rethinking Yard Care:  http://clean-water.uwex.edu/pubs/pdf/home.rethink.pdf

Lawn and Garden Fertilizers:  http://clean-water.uwex.edu/pubs/pdf/home.lgfert.pdf
Lawn and Garden Pesticides:  http://clean-water.uwex.edu/pubs/pdf/home.lgpesti.pdf
Light pollution: http://www.darksky.org/handouts/gnol.html

New - rules regarding Turf Fertilizer restrictions for homeowners, starting 4/4/2010: http://www.datcp.state.wi.us/arm/agriculture/pest-fert/turf_fertilizer/restrictions_homeowners.jsp