Hobbies include:

• Amateur astronomy

• Amateur radio
  • CB radio

• Animal
  • Dog breeding
  • Herpetoculture
  • Keeping pet animals

• Arts and Crafts
  • Crochet
  • Dollhouses and Miniatures
  • Doll making
  • Drawing
  • Embroidery
  • Knitting
  • Painting
  • Quilting
  • Scrapbooking
  • Sculpture
  • Sewing
  • Stained glass
  • Wood carving
  • Woodworking

• Collecting
  • Antiques
  • Artwork
  • Autographs
  • Books
  • Classic videogames
  • Coinss
  • Comic books
  • Currency
  • Dumpster diving
  • Found objects
  • Models
  • Postcards
  • Records
  • Stamps
  • Trading cards
    • Baseball cards

• Computer programming
  • Linux
  • Open source
  • Free software movement

• Cooking

• Electronics
  • amateur radio
  • Robots

• DIY
  • Home Repairs

• Film-making

• Games
  • Board games
    • Chess
    • Go
    • Pente
  • Card games
    • Bridge
    • Poker
    • Ambition
    • Backgammon
    • Gin Rummy
  • Dominoes
  • Miniature wargaming, or Wargaming
  • Role-playing games

• Gardening
  • Organic gardening
    • Permaculture
    • Forest gardening

• Geofiction
  • Model nations

• Historical reenactment

• Homebrewing

• Kite flying

• Literature
  • Reading
  • Writing
  • Learning foreign languages
  • Invented languages (conlanging)

• Machining

• Model-building
  • Model airplanes
  • Model cars
    • Model radio-controlled cars
  • Model houses
  • Model nationss
  • Model railways/railroads
  • Model rockets
  • Model ships

• Motor vehicles
  • Antique cars
  • Kit-cars
  • Motorcycles
  • Trucks

• Music
  • Being a musician or singer
  • Musical composition
  • MIDI compostion

• Observation
  • Aircraft spotting
  • Bus spotting
  • Train spotting
  • Metrophilia
  • Birdfeeding and birdwatching

• Outdoor nature activities
  • Birding (aka "bird watching")
  • Butterfly watching
  • Hiking
  • Mountain climbing
  • Caving
  • Rafting
  • Walking
  • Gardening

• Photography
  • Kite photography

• Physics demos or experiments

• Puzzles
  • Jigsaw puzzle
  • Crossword puzzles

• Research related
  • Genealogy
  • Hagiography

• Restoration of highly entropic artifacts
  • Antique machinery
  • Houses

• Sports
  • Baseball
  • Bowling
  • Cycling
  • Fishing
    • Freshwater
    • Saltwater
  • Hunting
  • Sailing
  • Shooting
    • Rifle
    • Pistol
    • Shotgun
  • Softball

• Toy
  • Lego
    • Brikwars

• Internet-based hobbies
  • Wikipedia
  • Google Whacking
  • Newsgroups
  • Currency bill tracking
  • Geocaching
  • GPS drawing
  • Fantasy sports