Baltimore Bird Club
- Rare bird alerts, newsletters, site guides, trip reports, checklist, backyard birding, and links.
- http://baltimorebirdclub.org/

Getaway Sailing
- Sailing school and club. Contains charter and rental, cruises, membership information, visitor events, and pictures.
- http://www.getawaysailing.com/

Baltimore City Yacht Association
- Racing, cruising, and social activities. Includes events calendar, photos, and membership information.
- http://www.bcya.com/

The Cross Street Irregulars Brew Club
- Homebrewer club. Sponsors, members, events, monthly competition results, and brewing tips.
- http://www.csibc.net/

Johns Hopkins Outdoors Club
- Runs weekend trips including caving, climbing, and backpacking. Hopkins affiliates are invited. Equipment rental offered. Also includes schedule and list of officers.
- http://www.jhu.edu/~outdoors/

Baltimore Amateur Radio Club
- Includes newsletter archive, testing session dates, and hamfest information.
- http://www.baltarc.com/

Northwest Bulldogs
- Pop Warner youth football; includes news, photos, links, and calendar.
- http://eteamz.active.com/northwest/

Baltimore Aikido
- Aikido Schools of Ueshiba affiliate dojo. Includes class schedule, membership information, and photo gallery.
- http://www.baltimoreaikido.com/

Baltimore Ski Club
- Provides calendar of ski trips, social events, and club meetings, an archive of photos and stories and a library of forms.
- http://www.baltimoreskiclub.com/

Baltimore Duckpin Bowler's Association
- Rankings of high bowlers, averages, chatroom and related links.
- http://www.qis.net/~bdba/

Baltimore Blizzard
- Highlights include news, features, standings, playoffs, statistics, rankings, schedule and results.
- http://www.baltimoreblizzard.com/

Charm City Roller Girls
- Women's roller derby league. News, history of the league, events calendar, forums, and photographs.
- http://www.charmcityrollergirls.com/

Patterson Duckpin Bowling Center
- Rules, rates, and league information.
- http://www.pattersonbowl.com/

Basketball Officiating Camps
- Basketball officials camps and referee information.
- http://www.baltimoreareaofficialsgroup.com/

Baltimore Tennis Patrons
- About the organization and contact information.
- http://www.tennispatrons.org/

Meadowbrook Aquatic and Fitness Center
- An aquatic and fitness center; includes membership information, pictures, services offered and contact information.
- http://www.mbrook.com/

Maryland Rock Raiders
- 4x4 club providing training and attending shows and festivals. Club background, forums and photographs.
- http://marylandrockraiders4x4club.com/

STX Lacrosse
- Manufacturer of equipment, accessories and apparel for lacrosse. Product descriptions and a dealer locator.
- http://www.stxlacrosse.com/

Sail Baltimore
- A 501(c)(3) non-profit organization, provides a free, annual, public program of visiting ships and maritime events. History, volunteering, education and events.
- http://www.sailbaltimore.org/

The Ludo Club
- A board and card game club for adults. Offers a library of games and various clubs. Site contains information on the games played, the group and directions to their location.
- http://www.theludoclub.com/

Outdoor Adventures Paintball
- Includes background information about the sport, rental prices, hours of operation, types of games, price lists, and online reservation booking.
- http://www.oapaintball.com/

Baltimore Bombshells Scooter Club
- List of members, photographs, calendar of events, message board and contact information.
- http://www.actiongirlart.com/

Harbor Cruises, Ltd.
- Offers daytime and evening cruises in the Baltimore Inner Harbor on The Bay Lady and Lady Baltimore. Includes schedules, menus and information about charters for special events.
- http://www.harborcruises.com/

Baltimore Society of Model Engineers (BSME)
- Model railroad club that offers open house shows to promote the hobby with the general public. Site offers O and HO scale layouts and photos, events calendar, and activities.
- http://www.modelengineers.com/

Downtown Sailing Center
- Offers sailing classes, a summer sailing camp, racing opportunities, programs for disadvantaged youth and other activities for nominal rates.
- http://www.downtownsailing.org/

Metropolitan Baltimore Doberman Pinscher Club
- Sponsor of local conformation shows, obedience trials, and practice matches for the Doberman exhibitor. Includes event schedule, brags, and photos.
- http://mbdpc.virtualave.net/

Baltimore Area Triathlon Club
- A not-for-profit, multi-sport athletic club providing guidance and support to people of all ages and abilities who participate in one or more endurance sports. Includes calendar of events.
- http://tribmore.org/

Troop 35
- From the Church of the Redeemer, the site for Boy Scout Troop 35. Includes description, how to join, chat room, fundraising information, directions and contact information.
- http://www.troop35.us/

Jones Falls Valley Celebration
- Each year, the northbound lanes of I-83 are transformed into a recreational trail to walk, bike or rollerblade on and enjoy the valley. Information on event registration, exhibitors, vendors and artists.
- http://www.jonesfalls.com/

JohnCon
- An annual gaming convention held at Johns Hopkins University. About the event, schedule, contact information, staff members, registration information and links of interest.
- http://www.jhu.edu/~johncon/

Cross Keys Tennis Club
- Indoor tennis. Directions, information on instructors, leagues, tournaments, club facilities, contact information and links of interest.
- http://www.crosskeystennis.com/

Baltimore Running
- Club for runners. Resources, running routes, trails, groups, clubs, races, shoes, stores, and events.
- http://www.baltimorerunning.com/

Baltimore Waterfront Promenade
- The Waterfront Promenade is an uninterrupted six-mile pedestrian walkway around Baltimore's harbor.
- http://www.baltowaterfrontpromenade.org/

Pony Pals Kids Club
- A company offering pony rides for kids. Upcoming events, photographs, and contact information.
- http://www.ponypalskc.com/

Blue Goose Charters
- Charter boat company. General information, photos and animated GIFs, newsletters, essays, information on training to operate a vessel, description of boats for charter and directions.
- http://www.blugoose.com/