Community Toolbox
Grassroots Fundraising Journal
Institute for Conservation Leadership
Internet Nonprofit Center
BoardSource: Building Effective Nonprofit Boards
Nonprofit Charitable Orgs - A directory of online resources for nonprofits
River Network library – excellent resources on organizational development.

Donors Forum of Wisconsin
GuideStar – The National Database of Nonprofit Organizations
The Grants Information Center, University of Wisconsin Madison
Grassroots Fundraising Journal
Great Lakes Aquatic Habitat Network and Fund website--includes materials and grant sources for projects in the Great Lakes basin
Nonprofit Charitable Orgs - A directory of online resources for nonprofits
River Network library – excellent resources on raising money from a variety of sources.

CompuMentor
Coyote Communications
Ebase, a free interactive database for nonprofits
River Network library – excellent resources on developing a membership base.
United States Postal Service, for information on nonprofit mailing.
TechSoup, an online source of technology information for non-profits.

Bridge and culvert assessment information from the University of Massachusetts River and Stream Continuity Project (available soon)
Flow data from the U.S. Geological Survey National Streamflow Information Program--get flow data from USGS gauges around the country
GIS help--find user-friendly resources for creating Geographic Information Systems (GIS) data at http://www.vertices.com/ and http://www.gis4kids.com/
National Park Service water  trail tools and presentations
Stony Brook Millstone Watershed Association has an online library with several resources on modeling, assessment, sustainable design and other technical topics
U.S. Environmental Protection Agency online training in watershed management (also available on CD)
Watershed Monitoring and Assessment Design Workbook, available through the Rocky Mountain Watershed Network