| mainemapleproducers.com | Maine Maple Producers Association |
| internationalmaplesyrupinstitute.com | International Maple Syrup Institute |
| nofamass.org | Northeast Organic Farming Association of Massachusetts |
| ontariomaple.com | OMSPA: The Ontario Maple Syrup Producers Association |
| mi-maplesyrup.com | Michigan Maple Syrup Association |
| massfarmstands.com | Massachusetts Association of Roadside Stands |
| massfarmbureau.com | Massachusetts Farm Bureau Federation, Inc. |
| fb.org | Massachusetts Agricultural Facts |
| christmas-trees.org | Massachusetts Christmas Tree Association |
| vermontmaple.org | Vermont Maple Sugar Makers' Association |
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