'the Orchid Guide' One of the leading orchid reference sites in the web, offering photographs of orchids, calendar of events, links and last but not least: the OrchidGuide Digest (OGD), the leading orchid discussion list for all your orchid related matters. http://www.orchidguide.com
Ohio - A STATE-WIDE APPROACH IMPROVING AWARENESS OF THE THREATS OF NON-NATIVE PLANTS http://www.dnr.state.oh.us/odnr/dnap/non_native/non_native.html
Plant Cataloging Software Looking for ways to organize your plants? This great software will help manage your plants as well as other things. http://www.nortica.com/CollectionMaster/Examples_Plants.html
Roadside Vegetation Management Research - PSU "Tips for Managing Problem Weeds in Forest and Wildland Settings" http://rvm.cas.psu.edu/Publications/FS_4_ForestWildlandWeeds.pdf has succinct information based on their experience with Mile-a-minute, Purple loosestrife, Japanese knotweed, Woody vines, Multiflora rose and Tree-of heaven. http://rvm.cas.psu.edu/.