- automotive
- business
- computers
- technology
- internet
- education
- entertainment
- finances
- food and drinks
- home and gardening
- jobs
- legal
- marketing
- video and camera
- car
- games
- organization
- shopping and product
- personal
- kid and family
- general
- amulet and buddha
- property
- insurance
- culture
- womens interest
- travel
- society
- sports
- real estate
- news
- health
- art and photography
- others
9cast 
Pligg is an open source content management system that lets you easily create your own social network.