83 Social News Sites – Categorized By Niche

Auto
AutoSpies – Auto News, Reviews, Car Photos, Auto Show Photos, Spy Shots

Blogs & Websites
Spicypage
Afrigator – African blog aggregator categorized per country

Business
DailyHub – Social Content for Business Geeks
KillerStartups.com – The Next Big Thing on the Internet is here. You pick it.
Small Business Brief

Christian
blogs4God – Popular Posts by Christians who blog

College
Campus Reader – America’s College Newspaper

Computers & Technology
Tweako

Culture
BARKS – Art, Music, Film

Deals
Agent B
Dealigg.com

Developers
DZone – fresh links for developers

Domaining
DNHour.com

Educational Resources
Qoolsqool

Entertainment
ShowHype

Environmental
Hugg 2.0
Plant Change
Fivelimes

Fashion
Stylehive
Chictini.com

Fishing
Angling Masters

Gadgets
Meme or Lame

General
Blipoo
Blogmemes
Digg
Hypediss
iFancyIt.com
IndianPad
linkfilter.net
Mixx
MySpace News
Newsvine
NowPublic
plime
Reddit
Shoutwire
Socialogs
Thoof

Health & Medicine
Dissect Medicine

Internet Marketing
PlugIM
Marktd
Online Advertising News

Microsoft
DotNetKicks

Music
Metalz
Musigg
Screamfeed

News
BuzzFlash

Off Beat
FARK

Parenting
Babblz

Photography
PhotographyVoter

Politics
News Heat

SEO/SEM Related
Sphinn
SEO Tagg

Shopping
iliketotallyloveit
ThisNext
eBay Wiki
Kaboodle

Social Action
Care2

Sports
ArmchairGM
Ballhype
Bikespace
FanNation
Fanspot
FitLink.com
Golf Finder
Golfer Linkup
High School Playbook
iLovetoPlay
Infield Parking
oobgolf
ScoreGuru.com
Sixer – Connecting Cricket Fans
SportsMates – The Global Sports Social Network
Sportsvite – Find people to play with
Takkle – High school sports network
UltraFan
ZexSports
ZigaZoga – Soccer

Tips & Tutorials
Daytipper
Tipstrs
TTiqq

Web Design
Pixel Groovy
DesignSiteUp – Vote on great web designs, submit yours for consideration.

Women
sk*rt