Subreddits starting with B

Pregnancy: support, questions, and shared experiences.

Cheap, simple meals for one.

Simple cooking for beginners.

Backcountry travel: trips, gear, and safety.

Explore backpacking trips, routes, and life with a pack.

The Back to the Future films.

Keeping backyard chickens.

Bacon in all its forms: recipes and photos.

Correcting bad history.

So-bad-they're-good films.

Badly done taxidermy.

The board game Go (baduk).

Share breads, cakes, pastries, and lessons from the oven.

The Baldur's Gate series.

Ballet: dancers, companies, and technique.

Baltimore: local discussion.

Playing the banjo: lessons, tunes, and gear.

PC part deals in Canada.

FC Barcelona fans: games, news, and discussion.

Barefoot and minimalist running.

Baristas and coffee shop work.

Baroque music: composers and recordings.

A community for bartenders.

Bartending tips and careers.

Baseball news and discussion.

Base-building games.

Bash scripting help and shell tips.

Basketball: playing, skills, and discussion.

For bass players: technique, gear, and playing tips.

Basset hound owners and fans.

Bass fishing: tips, lures, and catches.

Bass guitar lessons.

Batman in comics, films, and games.

Baton Rouge: news, events, and local discussion.

The Battlefield series: news and discussion.

Maps for tabletop RPGs.

Paintings of battles and other important moments in history.

Battlestar Galactica.

Photos of computer setups.

The San Francisco Bay Area.

Breakdancing: moves, battles, and videos.

Barbecue and smoking meat.

Beaches around the world.

Perler bead art and patterns.

Beagle owners and fans.

Caring for pet bearded dragons.

Growing and caring for a beard.

Bears doing human-like things.

Fans of The Beatles: music, news, and discussion.

Learn to DJ: beatmatching, mixing, and gear.

Beauty products and routines.

Beauty subscription boxes.

Discussion of the animated series Beavis and Butt-Head.

Beekeeping: hives, honey, and keeping bees healthy.

Beer: reviews, styles, and discussion.

Small ways to earn extra money online.

Photos of beer hauls and what people are drinking.

Trade beer with other collectors.

When a username happens to match the conversation.

Behavioural economics.

Belgium: news and discussion.

Bellingham, Washington.

Cincinnati Bengals fans.

Bento boxes: ideas and photos.

For students at UC Berkeley.

Berlin: news, events, and local discussion.

Fans of the manga Berserk.

The best comments from around Reddit.

The best films and shows on Netflix.

Keeping betta fish: care and tanks.

Fans of Between the Buried and Me.

Life with a new baby.

Studying the Bible together.

Bicycle culture and lifestyle.

Bicycle touring trips and gear.

Cycling: rides, bikes, and gear.

Discussion of The Big Bang Theory.

The reality show Big Brother.

Big data tools and engineering.

High-resolution wallpapers.

Commuting by bike: routes, gear, and safety.

Photos of beautiful bicycles and bike builds.

Bicycle repair and maintenance.

Pool, snooker, and billiards: technique and discussion.

The Binding of Isaac.

Biochemistry discussion.

Ethical questions in medicine and biology.

Bioinformatics and computational biology.

Learn about living things, from cells to entire ecosystems.

The BioShock series.

BioShock Infinite: story and discussion.

Biotechnology research and industry.

Bipolar disorder support.

Support for people with bipolar disorder.

Birdwatching: sightings, gear, and identification.

Share photos of birds.

Birds being mischievous and rude.

Birth control questions and experiences.

A community for bisexual people to share experiences and support.

Bitcoin news and discussion.

Brazilian jiu-jitsu.

A community for Black atheists.

A community for Black fathers.

A community for Black women.

Black Mesa, the Half-Life remake.

Black metal bands and albums.

Blacksmithing projects and technique.

Blacksmithing and forging.

The Blade Runner films.

Bladesmithing: making knives and blades.

Fans of the anime and manga Bleach.

Blender 3D: work, help, and tutorials.

Fans of Blink-182: music, news, and discussion.

Blogging: writing, growth, and tools.

Bloomington, Indiana: local discussion.

Bluegrass music: artists, recordings, and playing.

Blues music: artists, albums, and history.

Blues rock music: artists, albums, and recommendations.

Embarrassing photos from people's own past, shared in good fun.

BMW owners and fans.

BMX riding: tricks, bikes, and videos.

Board games: recommendations and discussion.

Fans of Boards of Canada.

Discussion of the series Boardwalk Empire.

Boating and boat ownership.

Photos of boats and ships of every size.

Bobber motorcycles and builds.

Fans of Bob Dylan: music, news, and discussion.

Fans of the animated series Bob's Burgers.

Body acceptance and support.

Bodybuilding training and nutrition.

Reading and using body language.

Bodyweight training.

Boise, Idaho: local discussion.

Discussion of the TV series Bones.

The Bonnaroo festival.

Growing and caring for bonsai trees.

Read along with others and join conversations about each book.

Collecting books: first editions, finds, and care.

Swap books with other readers.

Share new books you bought.

Themed book lists, like "top books about…" any subject.

Photos of beautiful books, bookshelves, and libraries.

Favourite quotes from books.

Share reading experiences and discuss books and authors.

Show off your bookshelves.

Book recommendations.

Football training and skills.

Border collie owners and fans.

The Borderlands series.

Borderlands 2: builds, loot, and co-op discussion.

Photos of borders between countries.

Borussia Dortmund fans.

Boston: news, events, and local discussion.

Boston Bruins fans: games, news, and discussion.

Boston Celtics fans.

Boston terrier owners and fans.

For students at Boston University.

Photos of plants, flowers, and botanical detail.

Botany: the scientific study of plants.

Boulder, Colorado: news, events, and local discussion.

Bouldering: problems, gyms, and technique.

Bourbon: reviews and discussion.

Bowling: technique and equipment.

Boxer dog owners and fans.

Boxing news and fights.

Support for borderline personality disorder.

Fans of the band Brand New.

Brazil: news and discussion.

Atlanta Braves fans.

Fans of the animated series Bravest Warriors.

Brazil: discussion (in English).

Bread baking: recipes, loaves, and help.

Breakbeat music: tracks and artists.

Breakcore music: artists, albums, and recommendations.

Breakfast recipes and photos.

Breakfast food: recipes and photos.

Discussion of the TV series Breaking Bad.

Support after a breakup.

Breastfeeding support.

Milwaukee Brewers fans.

Brewing beer, cider, and more at home.

Brighton, England: local discussion.

Brisbane, Australia: local discussion.

Bristol: news, events, and local discussion.

British Columbia, Canada: news and discussion.

Everyday annoyances of life in Britain.

British TV shows: recommendations and discussion.

Photos of Britain's towns, cities, and countryside.

Broadway shows and musicals.

Brooklyn: news, events, and local discussion.

Fans of Firefly and Serenity.

Cleveland Browns fans.

Web browsers compared and discussed.

Fans of Bruce Springsteen.

BSD operating systems.

Battlestar Galactica.

Tampa Bay Buccaneers fans.

Pittsburgh Pirates fans.

Buddhism: teachings, practice, and discussion.

Cooking on a budget.

Buffalo, New York: local discussion.

Buffalo Bills fans: games, news, and discussion.

Buffy the Vampire Slayer.

Get help choosing parts and building your own computer.

Share your budget and needs, and others put together a parts list for you.

Deals on PC parts and components.

PC part deals in the UK.

Bulldog owners and fans.

The German Bundesliga.

Burlington, Vermont: local discussion.

Burning Man: the festival and its community.

Discussion of the TV series Burn Notice.

Bushcraft and wilderness skills.

Business news and discussion.

Business intelligence.

Business school and MBA programmes.

Durable products built to last.