Amateur
- 461
- University Lowbrow Astronomers
- Events, astrophotos and gallery, telescope information, newsletter, and book list located at Ann Arbor.
- 462
- Amateur Telescope Makers of Boston
- Getting started in amateur astronomy, archive, newsletter, star parties, schedule, resources in the area.
- 464
- Gloucester Area Astronomy Club
- News, calendar, photo gallery, observing notes, games, links, and contact info.
- 466
- South Shore Astronomical Society
- Directions, downloads, minutes, gallery, and events located at Norwell.
- 469
- Howard Astronomical League
- Meetings, calendar, star parties, observing information, documents, resources, and gallery located in Columbia.
- 470
- National Capital Astronomers
- Public meeting and lecture schedule, open telescope nights, telescope making and mirror grinding class, and exploring the sky program located in the Bethesda.
- 472
- Astronomical Society of Northern New England
- Events, newsletters, star party curriculum, and links located in Kennebunk.
- 473
- Southern Maine Astronomers
- Education, observing information, outreach, forum, and newsletter located at Cumberland Center.
- 475
- Ouachita Valley Astronomy League
- Events, chat room, forum, galleries, meetings, projects, and star parties located at Monroe.
- 476
- Shreveport-Bossier Astronomical Society
- Star parties, gallery, special topics, newsletter, and links.