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

BOOKMARKING:

AllMyFavorites
Backflip
Blinkbits
Blinklist
Tagza
Blogmarks
Blummy
BuddyMarks
BookmarkTracker
ChangeToLink
Chipmark
Connectedy
del.icio.us
De.lirio.us
Diigo
Dogear
Favoritoo
Feedmarker
FeedMeLinks
Foxmarks
FreeLink
Fungow
Furl
GetBoo
GiveALink
Hyperlinkomatic
iKeepBookmarks
Lilisto
LinkaGoGo
Linkatopia
Linkroll
List Mixer
Livemarks
LookLater
Lycos iQ
Ma.gnolia
MarkaBoo
Mobilicio.us
MyBookmarks
MyHq
Mylinkvault
MyPip
My Stuff (from Ask)
MyVmarks
Namakkal
Netvouz
Online Bookmark Manager
OnlyWire
Oyax
Shadows
Simpy
SiteBar
SiteJot
Snipit
Socializer
StartAid
Stufflinker
Sync2it
SyncOne
Turboclip
Windows Live Favorites
WireFan
Zurpy

CARS AND AUTO:

AutoSpies
Boompa
CarDomain
Motorpulse

CONNECTING WITH FRIENDS:

Classmates
ConnectU
Dodgeball
Friends Reunited
Graduates
Meetup
MyYearbook
Reunion
SKOUT

CONSUMER REVIEWS:

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

COOKING/FOOD

All Recipes
Barmano
FohBoh – Restaurant network
Foods.tv – user generated cooking shows
Kitchen Bug
WineLifeToday – Wine

CULTURES/FOREIGN LANGUAGES:

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

DATING:

Chemistry
Crush or Flush
Cupid’s Lab
Flirtomatic
LoveandFriends
OkCupid
SpeedDate
WooMe

EDUCATION/BOOKS:

Book Tribes
BookCrossing
Bookins
BookMooch
BookSwim
Carmun
Citeulike
Connect via Books
Good Reads
Hitflip
LibraryThing
PaperBackSwap
qoolsqool
Read It Swap It
Shelfari
Wordsy

EVENT PLANNING

Socializr
Zoji

FAMILY:

Amiglia
Babbiz
CafeMom
Eons
Family 2.0
Family Den
Famiva
Geni
Genoom
GreatSchools – Parents review schools
Kinzin
MomJunction
MothersClick
Moxie Moms
MyFamily.com
Parentography
TheFamilyPost
WebBiographies

FASHION/CLOTHING:

Chictini
Stylehive
Threadless – T-shirts

FINANCE:

Tip’d

GAMES:

Gaia – Games and anime
Game Diggity
GuildCafe
WeeWorld

GENERAL NETWORKING:

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

HEALTH/MEDICAL:

DailyStrength
Health Ranker
icarecafe
MyPharmaNote
Sermo – Doctors
Walker Tracker
Who is Sick?

KIDS:

imbee
KidLinks

INTERNET MARKETING:

PlugIM
Sphinn

LINK/WEBSITE SHARING:

Blue Dot
Ensiting
Philoi
StumbleUpon
TagTooga
Trailfire

MICROBLOGGING/IM/MOBILE:

BeeMood
Feecle – Japanese
FlickIM
Frazr – German and French
IMified
Jaiku
Komoo – Chinese
loopt
mbuzzy
Numpa – Dutch
Oseflol – French
Pownce
Radar
Robisz – Polish
Rummble
Twitter
Zannel

MOVIES:

Filmcrave

MUSIC:

10Tune
Buzznet
Fuzz
JamNow
Jango
Indistr
Last.fm
MOG
Purevolume
Soundpedia
thesixtyone
WoozyFly – promotion of indie artists.

NEWS:

Blog Engage
Blogg-Buzz
BloggingZoom
BlogsVine
BuzzFlash
Content Pop
Digg
Fark
Hubdub
Mixx
NewsCloud
NewsHeat – Politics
Newsvine
NowPublic
Plime
Propeller
RawSugar
Reddit
Shoutwire
Stirr’d Up
Tagza
Thuhm
Wobblog
Ximmy

PETS:

Catster
Dogster
Fuzzster
MyCatSpace
MyDogSpace
PetSide
PetZume
Pikapet
UnitedDogs

PHOTO SHARING:

Flickr
Fotki
Fotolog
Linkinn
My Opera
Photbucket
Picli
Tagmee
Text America
Zoomr

POLITICS:

Carnival of Politics

POP CULTURE:

Lipstick – Celebrity
Showhype

PROFESSIONAL:

APSense
Biznik
Cofoundr – Entrepreneurial
CompanyLoop
DoMyStuff
Doostang
Ecademy
Fast Pitch
JASEzone
KillerStartups
Konnects
Lawyrs
LinkedIn
MeetIn
NetHooks
PairUp
Ryze
Small Business Brief
StartupNation – Entrepreneurial
Startupping – Internet entrepreneurs
Synergy Street – Entrepreneurial
Tapped In – Educational professionals
Upspring
Xing
Ziggs

REAL ESTATE:

Puurple
Trulia
Zillow
Zolve

RELIGIOUS:

Blessedit
Blogs4God
GodTube – Video sharing
GospelShout
MyChurch
Xianz

SHOPPING:

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

SOCIAL ACTION:

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

SPORTS:

Armchair GM
Ballhype
eFans
FanNation
Fanspot
GymMeet
Joga – Soccer (Football)
ScoreGuru
SportsFlip
Sportsvite
Takkle – high school sports
SportsCast

TECHNOLOGY:

Carnival of Making Money Online
Design Bump – Web/graphic design
Design Float – Web/graphic design
DesignRelated
DevelopersNiche
DNHour – Domain Name News
DotNetKicks
Dzone – Developers
Earner’s Club – Internet Marketing
Hacker News
Hosting Bookmarks
Leet Daily
Pixel Groovy – Web design
Slashdot
Tweako
SWiK – Open source software
WPscoop – WordPress

TEEN:

eCRUSH
eSpintheBottle
Piczo
Profile Heaven
Sconex
Student.com
Stardoll
Teenwag

TRAVEL:

Couch SurfingEveryTrail – GPS
GeckoGo
Groople
Gusto
TravBuddy
Travellerspoint
Trip Advisor
TripUp
WAYN
Woophy

VIDEO SHARING:

Broadcaster
Friction.tv
Panjea
Revver
Tubearoo
Viddler
Video Bomb
Video Sift
Vimby
Xillian TV
YouTube

WOMEN:

Kirtsy
PNN
PrettySocial
SurgarLoving

MISCELLANEOUS:

9rules
43 Things – Goal sharing
Beautiful Society – List and vote for your favorite things
Clip Clip
Brijit
ChickAdvisor
Clipmarks
Clipstar
Consumating
Dandelife – A social biography network
Dawdle – Auction
Daytipper – Tips and tutorials
Digglicious
DigStock – Financial
DontStayIn – Clubbing
EnergyPeopleConnect
Experience Project – Share Life Experiences
Faceparty – “The biggest party on Earth”
Fazed
Faqqly – Community of questions and answers
Ficlets – Collaborative writing
Flixster – Movies
Gather
Global Voices
GoLark – Events and activities
Hypediss
I Am Bored
Jambo
JetEye
LinkFilter
Listible
Neighborrow – Borrowing and sharing
Ning – Create your own network
Outside.in – local news
Product Clash – Product reviews
Prosper – People to people lending
Recruiting.com
Searchles
SEO Tagg
Shared Confession – Secrets
Spout – Films
Squidoo
StoryLink – Screen Writers
Tipstrs – Tips and tutorials
Tribe
Truemors
Value Investing News – Financial
Vampire Freaks
WeGame – Video games
Wists