Special interest social networks include social networks dedicated to hobbies as well as niche special networks such as those dedicated to medical advice, car reviews, and other specific areas.
Action Profiles
Action Profiles is a social network for people who love action sports like skateboarding, surfing, skiing, BMX, etc. On Action Profiles, you can get into contests, check event calenders and connect with other action sports enthusiasts.
Bottle Talk
Wine tasting has hit the digital age at Bottle Talk. Like wine? Wanna connect with other wine-lovers? Bottle talk will let you share your favorite wines with your friends and browse for new wines based on tasting tags.
Car Gurus
Car Gurus is a social network for sharing car reviews and getting quick answers to questions about cars. A great site to go to if you are preparing to buy a new car.
ColShare
Do you collect coins? Like action figures? Have boxes full of baseball cards in your basement? ColShare is a social network for sharing your collections, adding items to your wish list, and even selling off some or all of your collection.
FanIQ
FanIQ is for the sports fanatic who wants to test their wits against other sports nuts. With a wide range of trivia and contests from all the major sports, FanIQ will let you meet other fans and give you a FanIQ card that you can post on your blog.
Girl Sense
GirlSense is where dress up meets social networking. You can play games, create your own fashions, and connect with other people. It's like living in a digital doll house.
PatientsLikeMe
A community of patients, doctors and organizations to inspire and empower persons with life-changing diseases. Founded by three MIT engineers who had personal experiences with Lou Gerhig's disease, PatientsLikeMe seeks to make a difference.
Moterus
A social network for two-wheel enthusiasts, Moterus allows users to learn about others who share the same passion and keep up with upcoming events. There is also a "Routes" category that covers great paths and roads for the serious biker.
Motortopia
Cars, bikes, boats and planes is what Motortopia is about. A special interests social network for the motor enthusiast, Motortopia lets you show off your vehicles in your virtual garage and post blog entries about your most recent motor experiences.
Ravelry
Ravelry is a knit and crotchet community that is in beta and open by invitation only, but you can easily request an invitation on their website. It's quest is to be a place for knitters, crocheters, desingers, spinners and dyers to connect with others and find inspiration.
SoberCircle
12-step programs hit the digital age at SoberCircle. Designed around the idea of helping people to overcome their addiction, SoberCircle allows people to reach out through the internet to recount their tale of addiction and seek help in their rehabilitation.












