| magicalliance.org | Maryland Alliance for Greenway Improvement and Conservation (MAGIC) |
| explorenature.org | Irvine Natural Science Center |
| discoveryvillage.net | Discovery Village |
| cbec-wtna.org | Chesapeake Bay Environmental Center |
| umd.edu | Maryland Cooperative Extension Entomology |
| mdforests.org | Maryland Forests Association |
| friendsofmd.org | 1000 Friends of Maryland |
| horticulturemd.org | Horticultural Society of Maryland |
| state.md.us | Maryland Department of Planning - Smart Growth |
| marylandconservationcouncil.net | Maryland Conservation Council |
United States , Massachusetts , Burlington