Facebook, LinkedIn, and Twitter may be household names by now, but what about those other, more niche geared social networking sites? I have complied a list from A to Z, of many of the less known, but still noteworthy, social networking sites. 
A: Amie Street: an Indieonline music store and social network service created in 2006 by Brown University Seniors.
B: Bebo: General
C: CafeMom: an ad-supported website specifically targeted at mothers, offering member-generated content such as profiles, journals, groups, photos, and polls.
D: DailyStrength: users provide one another with emotional support by discussing their struggles and successes with each other.
E: Eons.com: a social networking site for baby boomers.
F: Filmaffinity: a social network site about movies, allowing users to share movie ratings, discover new movies and meet others with similar movie taste.
G: GamerDNA Inc.: a social media company for computer and video game players.
H: Hospitality Club: an international hospitality service. Its members use the website HospitalityClub.org to coordinate accommodation and other services, such as guiding or regaling travelers.
I: italki: a language learning website, with social networking features.
J: Jammer Direct: a social networking website with its primary focus on the artistic and music scenes of the Midwestern, U.S.
K: kaioo is a non-profit social network.
L: LibraryThing: a social cataloging web application for storing and sharing personal library catalogs and book lists.
M: MeettheBoss: a business networking tool for business executives around the world, across all vertical industries
N: Ning: an online platform for people to create their own social network.
O: OkCupid: a social networking and dating website which features member-created quizzes and supports various modes of communication.
P: Passportstamp.com: a network for travelers to record their overseas visits and to record their locations as they travel round the world.
Q: Quarterlife:the first Internet series to have been created alongside a social networking website, quarterlife.com.
R: Ravelry: allows knitters and crocketers around the world to organize and share projects and ideas.
S: Scispace.net: a non-profit and free-to-use social network service designed specifically for collaborating researchers.
T: Talkbiznow: a comprehensive interactive business networking site for business professionals.
V: Vampirefreaks.com: an online community for the gothic/industrial subculture, and surrounding topics.
W: Wakoopa: a social networking site that monitors the software applications its members use.
X: Xt3: a social network managed by the Catholic Church.
Y: Yammer: a microblogging service, which like twitter, it allows users to post updates of their activities, follow others' updates, tag content, and create memes. Unlike Twitter, Yammer focuses on businesses, and only individuals with the same email domain can join a given network.
Z: Zoo.gr: a social networking and online games website.










Comments
Great work collecting these. The niche-ification of social networking sites is certainly happening. As long as you can get 'critical mass' the long tail is wagging!
thank for share this to us,i like them.
wow. I'm surprised raptr.com isn't in the list as a gaming social platform. It's caught the eye's of souljaboy and lil bow wow.
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