Huge List of Social Media Sites

Here is categorized compiled list of social media sites

TECHNOLOGY:

Slashdot
Dzone – Developers
CSS Globe
DNHour – Domain Name News
Pixel Groovy – Web design
Design Float – Web design
Leet Daily
DevelopersNiche

INTERNET MARKETING:

PlugIM
Sphinn

NEWS:

Digg
Netscape
Reddit
Newsvine
News Heat – Politics
Sk*rt
Shoutwire
Wobblog
Content Pop
Blogg-Buzz

BOOKMARKING:

del.icio.us
Ma.gnolia
Furl
AllMyFavorites
Blinklist
Blogmarks
Blummy
BuddyMarks
BookmarkTracker
Chipmark
Connectedy
De.lirio.us
Dogear
Favoritoo
FeedMeLinks
Foxmarks
Fungow
Linkatopia
Livemarks
Mobilicio.us
Mylinkvault
Socializer

SHOPPING:

AgentB
Dealigg
Yub
BiddingBuddies – For Ebay members
ThisNext
Zebo
Judy’s Book
Deal Comet

MUSIC/POP CULTURE:

Purevolume – Music
Last.fm
Buzznet
MOG
Soundpedia

IM/MOBILE:

Twitter
Pownce
FlickIM
IMified
Radar
Zannel

PHOTO SHARING:

Flickr
Photbucket
Fotolog
Fotki
My Opera
Zoomr
Text America
Picli

VIDEO SHARING:

YouTube
Broadcaster
Panjea
Revver
Viddler
Video Bomb
Video Sift

FASHION/CLOTHING:

Threadless – T-shirts
Stylehive

EDUCATION/BOOKS:

Shelfari
LibraryThing
BookCrossing
Good Reads
Book Tribes
Connect via Books
qoolsqool

ARTS:

Humble Voice – Art, music, video, photography
Virb – Music, art, fashion, film and more
imeem – Music, videos, photos
deviantART

SOCIAL ACTION:

TakingITGlobal
Care2 – Social Issues/Humanities
Hugg – Environmental
Planet Change – Environmental

CULTURES/FOREIGN LANGUAGES:

Amina – Chechen Republic
Wamba – Spanish social network
Black Planet – African American
Hyves – Dutch
IRC Galleria – Finland
iWiW – Hungary
LunarStorm – Sweden
Playahead – Sweden
MiGente – Latino
Mixi – Japan
Nexopia – Canada
ClubGh – Ghana
Acelerame – Spanish (cars)
Scoopeo – French
Yigg – German
StudiVZ – German students

LINK/WEBSITE SHARING:

StumbleUpon
Blue Dot
Trailfire
Ensiting

CARS AND AUTO:

CarDomain
AutoSpies
Boompa
Motorpulse

TRAVEL:

TravBuddy
WAYN
Gusto
Couch Surfing
Travellerspoint
Woophy
EveryTrail – GPS
Trip Advisor
TripUp

REAL ESTATE:

Trulia
Zillow

CONSUMER REVIEWS:

RateItAll
Yelp
Cork’d – Wine reviews
Chowhound – Food
Epinions

PROFESSIONAL:

LinkedIn
MeetIn
Ryze
Xing
Biznik
Cofoundr – Entrepreneurial
Fast Pitch
Konnects
StartupNation – Entrepreneurial
Startupping – Internet entrepreneurs
Tapped In – Educational professionals
Ecademy

DATING:

Flirtomatic
OkCupid
Chemistry

CONNECTING WITH FRIENDS:

Classmates
Friends Reunited
Dodgeball
Graduates
Meetup
MyYearbook
Reunion
ConnectU

HEALTH/MEDICAL:

Sermo – Doctors
Disect Medicine
Walker Tracker
Who is Sick?

TEEN:

eCRUSH
eSpintheBottle
Piczo
Profile Heaven
Sconex
Student.com
Stardoll

KIDS:

imbee

PARENTING/FAMILY:

Babbiz
Moxie Moms
GreatSchools – Parents review schools

FAMILIES/GENEALOGY:

Geni
WebBiographies

RELIGIOUS/CHRISTIAN:

MyChurch
Blogs4God
Xianz
GodTube – Video sharing

SPORTS:

Joga – Soccer (Football)
Sportsvite
Ballhype – Sports
ScoreGuru
SportsCast
SportsFlip

GAMES:

Gaia – Games and anime
Game Diggity
GuildCafe
WeeWorld

PETS:

Dogster – Dog lovers
Catster – Cat lovers
Fuzzster
Pikapet

GENERAL:

MySpace
Facebook
Trig
Friendster
Orkut
Bebo
CyWorld
LiveJournal
Grono
Tribe
Hi5
Jaiku
Multiply
Netlog
Passado
Skyrock
Tagged
AIM Pages
Yahoo! 360
Everyone’s Connected
Windows Live Spaces
Zaadz

MISCELLANEOUS:

9rules
Beautiful Society – List and vote for your favorite things
43 Things – Goal sharing
Consumating
Dandelife – A social biography network
DontStayIn – Clubbing
Experience Project – Share Life Experiences
Faceparty – “The biggest party on Earth”
Gather
Recruiting.com
Ning – Create your own network
Searchles
Vampire Freaks
Faqqly – Community of questions and answers
Ficlets – Collaborative writing
Global Voices
Spout – Films
Prosper – People to people lending
DigStock – Financial
Clipmarks
Listible
Rummble – Texting