This says nerd, but arguably I am a geek. Not a nerd. Yes, there is a difference. I have an article that I can cite.

Anime/Manga Nerd

[x] You watch anime.
[x] You read manga.
[] You buy/collect anime DVDs or manga volumes.
[x] You own some other form of anime/manga merchandise.
[x] You have referred to an anime character as 'hot' before
[x] You have cosplayed.
[x] You have done so in public.
[] You have been to an anime/manga convention.
[] You have created/joined a fanclub for an anime/manga character.
[] You have created/joined a hateclub for an anime/manga character.
[] You have squealed when you found out somebody had the same name as an anime character you knew.
[x] You enjoy drawing anime
[] People you know, know you as the 'anime' person.
[x] You know that it is pronounced 'mawnguh' and not 'manga' like it is spelled.
Anime/Manga Nerd= 8/14

ART NERD

[x] You like art.
[x] You actually consider yourself an artist.
[] When using art supplies, the brand of them matters to you.
[] You have a favorite brand.
[x] You have asked for art supplies as a Christmas/birthday gift before.
[x] You give people your drawings as gifts.
[x] People actually ask for your drawings.
[] You are/were known as 'the art person' at your school.
[x] Instead of just 'brown' or ' pink', you'd be specific; it's 'sienna brown' or 'blush pink'.
[] You have taken an art class outside of school.
[x] You have considered a career as an artist.
[x] Your school papers are always covered in doodles.
[x] You have a favorite artist.
[x] Your drawings have been framed.
[] You carry a sketchbook with you everywhere you go.
Art Nerd= 10/15

MUSICAL NERD

[x] You play a musical instrument.
[x] You play more than one instrument.
[x] You actually really enjoy playing your instrument.
[x] You've given your instrument a name.
[x] You've participated in an extracurricular activity for your instrument.
[] You are known by what you play.
[x] You listen to classical music.
[x] You are wondering whether that refers to the classical music genre or the classical music time period.
[x] You have a favorite composer.
[] All of your friends are from your band/orchestra class.
[x] You write music.
[x] You've had discussions with your friends about music; your favorite composers/instruments/musical time periods/key/etc...
[x] You have considered a professional career with your instrument.
[x] You are never nervous playing for other people. (not playing, just singing)
Musical Nerd= 12/14

VIDEO GAME NERD

[x] You play video games.
[] You own more than 4 different video game systems.
[x] You've had debates over which system is the greatest.
[] You play video games every day.
[] You have played a video game for over 10 hours.
[x] You have songs from your favorite video games on your MP3.
[x] You love to talk about video games.
[] You memorize the dates for when a new game is being released.
[] People know you as the 'gamer' person.
[] You spend more time on video games than you do hanging out with friends.
[] Your gaming system is in your room.
[x] You have preferences when it comes to what company your game came from.
[] You've had debates over which company is the best.
[] You keep playing a game until you beat it.
[x] It makes you angry when you found out somebody looked up cheat codes on the internet to beat their game.
Videogame Nerd= 6/15

COMPUTER NERD

[x] You use the computer every day.
[x] You have an account/username on some sort of social website.
[x] You go into random internet chatrooms.
[x] You spend at least 2 hours a day on the computer.
[x] You use computer faces.
[x] It is hard to go a day without using the computer.
[x] You spend time in online forums.
[x] In the forum/chatroom you use, you are known there by everyone else.
[x] You have friends you have only met online.
[] You had/do have a girlfriend/boyfriend you have only met online.
[] You have actually met an online friend in person.
[x] U cn ezly rd 'txttlk.'
[] You have said 'lol' or 'omg' in speech that is not online.
[x] You can type really, really fast.
Computer Nerd - 11/14 (There should be stuff in here about programming and circuitry, not just online crap. Cuz those are the real computer nerds! *ahem* Geeks I mean.)