Up Up Away Hot Air Balloon Co
- Provides hot air balloon flights and corporate advertising. Pictures and prices.
- http://www.marylandballoonflights.com/

Light Flight Hot Air Balloons
- Balloon and barnstormer flights. FAQ and Photo gallery.
- http://www.fun-flying.com/

South West Area Park Modelers
- RC model aviation club information, field map, events, members list, news, for sale, and related links.
- http://www.swaprc.org/

Chesapeake Catalina Yacht Club
- Sailing club for Catalina yacht owners in the central Chesapeake Bay area.
- http://www.sailccyc.org/

Chesapeake Hiking and Outdoor Society
- Members participate in hiking, biking, canoeing, and camping. Includes schedule, trip reports and photos, forum, and membership information.
- http://www.chaoshikers.org/

Northeast Maryland Amateur Radio Club
- Includes club and membership information, activities, homebrew plans and regional weather and disaster links.
- http://www.nemarc.org/

Just Us Beautiful People Bowling and Social Club
- Profile, members, events, and contacts.
- http://www.jubp.org/

Chesapeake Wheelmen
- Bicycle racing club. Features include race calendar and results, rider profiles, events, news, training rides and races, and contact details.
- http://wheelmen.virtualave.net/

Rebounders Gymnastics Training Center
- Provides activities for ages 18 months through adults, including special needs, weekly gymnastic classes, camps, birthday parties, field trips, cheerleaders-tumbling, trampoline, and boys and girls competitive programs. Locations in Timonium and Baltimore
- http://www.rebounders.com/

The Greater Baltimore Chapter of US Lacrosse
- Area teams, related links, tournament listing, contacts and training information.
- http://www.greaterbaltimorelax.com/

United Martial Arts of Maryland
- Teaches a form of karate that includes also judo and jui jitsu. Locations, classes and photographs.
- http://www.umam.org/

Baltimore Road Runners Club
- Established 1971. Includes a list of upcoming races, results, training locations, membership information, and contacts.
- http://www.brrc.com/

Greater Baltimore Swim Association (GBSA)
- A year-round, competitive age group, swimming program.
- http://www.gbsaswim.org/

Severn River Rugby Football Club
- Fields men's, women's, and under 19 rugby teams. Site offers schedules and club information.
- http://severnriverrugby.org/

Kids First Swim Schools
- Dedicated to teaching kids to be safe and proficient in the water. Locations, program guide and session schedules.
- http://www.kidsfirstswimschools.com/

Central Maryland Antique Tractor Club
- Promotes the restoration, preservation and sport of tractor pulling through education, along with interest and participation in this activity.
- http://www.cmatc.org/

North Baltimore Aquatic Club
- Provides instruction for swimmers of all skill levels including Olympic athletes. Find information about the team, activities, meets and training locations.
- http://www.nbac.net/

Parent Coaches Association
- PCA provides opportunities for youth bowlers to obtain scholarship money. Features bowling tournament calendar and the association's services and background.
- http://www.pca-bowling.com/

Central Maryland Soccer Association (CMSA)
- Operates under an "open" membership policy recognizing all USSF affiliates, recreation council and CYO applicants.
- http://www.cmsasoccer.com/

Central Maryland Dart League (CMDL)
- A volunteer staff supports area tournaments, events, and teams and features standings, pub listings, and news.
- http://www.cmdldarts.com/

Lower Susquehanna Heritage Greenway
- Maryland organization promoting conservation and accessibility of the areas along the Susquehanna River in Harford and Cecil Counties for recreational use. Includes interactive trail map with photos, history, and evenst.
- http://www.lshgreenway.org/

Central Maryland Ultimate Association
- Volunteer organization that sponsors co-ed games of ultimate frisbee in the Baltimore area. League and pick-up information, fields map and directions, calendar of events, newsletter archives, links and contacts.
- http://www.md-ultimate.org/

Indy's Underground Climbers Guide
- A climbing guide for Sugarloaf Mountain and other central Maryland areas.
- http://www.bcpl.net/~indy/climbing/guide.html

Baltimore Field Hockey Association (BFHA)
- A volunteer organization that promotes the sport's growth in the Baltimore region for high school, college, and post-school players. Includes tournaments and events, summer, fall and indoor league play, and membership information.
- http://www.bfha.org/