I pulled this off of a blog [http://www.mikesmoneymakingmission.blogspot.com/] but he doesn't have his posts setup so that I can link to the post. Might be useful for those of you doing social networking stuff: AmieStreet: Niche music. "Amie Street is a place to discover, download and share music of every genre, from all over the world. Whether you come to Amie Street for two minutes or two hours, we'll help you find new music you'll love." aNobii: Niche Books. "List books, share thoughts." athlinks: Niche endurance sports. "Explore the world's largest endurance sports database" Avatars United: Niche gaming. "Unite with your in-game friends,old and new Share in-game photos and videos. Create groups and plan events." badoo: Niche general. "Badoo is the best place for finding all parties, clubs, and events and meeting the cool people to enjoy them with. Chat, flirt, simply socialize, share and have fun!" Bebo: Niche general. "Bebo is a social media network where friends share their lives and explore great entertainment." BlackPlanetL Niche African Americans "BlackPlanet.com is your place to meet and connect with African Americans around the country. Chat or post photos and videos to share your black experience." BOOMj: Niche Baby Boomers and Generation Jones. "The name BOOMj derives from the two primary audiences we serve: the Baby Boomers Generation and Generation Jones - both born during the big 20-year, post-World War II boom in births from the mid-1940's to mid-1960's." BUZZNET: Niche Music Pop culture. "Is a vibrant social media destination representing the next evolution of social networking.Buzznet distinguishes itself from traditional media sites and social networks that are focused on profile pages and communication tools by enabling Web users to program dynamic multimedia communities around the music and pop culture topics they are most passionate about." cafemom: Niche Moms and Moms to be. "CafeMom is a place for moms and moms-to-be to connect with one another." care2: Niche activists, green issues. "To help make the world a better place. The idea is simple: Make it easy for everyone to live a healthy, green lifestyle and impact the causes they care about most." classmates: Niche previous class friends. "The company's online social networking website enable users to locate and interact with acquaintances from high school, college, work and the military." deviantART: Niche Art "The largest art community in the world! Membership is FREE to share and sell your artwork, start your Art Collection and track your favorite artists." DontStayIn: Niche Clubbing. Elftown: Niche fantasy, science fiction. "Elftown is the fantasy and science fiction community for artists, writers and hangarounds. It should be easy to find other people here and to discuss whatever you like." eons: Niche babyboomers. "Boom. Boom. Boom. Have you heard it? It's the beat of our generation of boomersâ€”many of us at Eons includedâ€”who are lovin' life on the flip side. Eons.com is the online community for "BOOMers," those of us born between 1946 and 1964 and beyond, who want to learn and do more to make the most of every stage of life." Experience Project: Niche experiences. "Experience Project is the place for authentic stories shared anonymously about every life experience -- including your own." facebook: Niche general. "Facebook helps you to keep in touch and share content with people in your life." fixster: Niche movies. " Flixster is a community for movie fans of all shapes and sizes. Whether you are a die-hard horror fan or lover of romantic comedies (or both), Flixster is a place where you can find others who share your taste and through them discover new movies that you will love." FOTOLOG: Niche photos. "Fotolog is the world's leading photo-blogging site, one of the world's largest social networking sites and a global cultural phenomenon." Friends Reunited: Niche reuniting UK friends. "It's free to register and free to contact your friends from primary and secondary schools, universities, streets, armed forces and teams and clubs." fubar: Niche general "fubar is the Internet's only online bar and happy hour where the party goes on 24/7! fubar is for anyone 18 and older who is interested in meeting new people while connecting with old friends." gaia online: Niche anime, games. "Gaia Online is the leading online hangout on the web. More than seven million visitors come to Gaia every month to make friends, play games, watch movies in Gaia Cinemas, Gaia's virtual theaters, and participate in the world's most active online community." gather: Niche general. "gather has become the premier social network for the over-30 crowd. Share your thoughts, photos and videos." Geni: Niche genealogy. "Geni is a private place for your family to build your family tree, preserve your history and share your lives." gossip report: Niche anonymous gossip "On GossipReport.com you can anonymously talk about anyone you want. Instead of creating a profile about yourself, you can create a profile about someone else." Habbo: Niche virtual world. "Habbo is a virtual world where you can meet and make friends." hi5: Niche general. "Find friends in your home town or other parts of the world. Show off your photos. Listen to music you like. Reconnect with old classmates. Build your own page and express what's important to you." Horseland: Niche horses. "Horseland is about horses and dogs, but it is also about meeting people. There is always something new when you play with thousands of people from all over the world." imeem: Niche general "imeem is a social network that enables users to discover, interact and express themselves with media, including music, video and photos, and form connections based on shared tastes and interests." itsmy: Niche mobile content. "The biggest free mobile content community. Send anything" jammerdirect: Niche music, musicians. "Jammer Direct is designed to be a local music & artistic resource for area musicians, artists, venues, and musical and art related vendors." Kaioo: Niche general. "As state approved charity organisation kaioo offers its members all features of a modern Social Community - and a lot more, because kaioo is the first real Social Community on the Internet" last.fm: Niche music. "Every track you play will tell your Last.fm profile something about what you like. It can connect you to other people who like what you like - and recommend songs from their music collections and yours too." lifeknot: Niche general. " First and foremost, lifeknot makes it easy for you to meet new people and make new friends that share your interests and passions in any activity imaginable." LinkedIn: Niche business. "Over 30 million business professionals use LinkedIn to exchange information, ideas and opportunities." LiveJournal: Niche general. "You can use LiveJournal in many ways: a private journal, a blog, a discussion forum or a social network." MEETin: Niche Friends. "Our Mission: To make new friends through a local social network without the pretense of establishing business connections." Meetup: Niche Offline meetings. "Meetup is the world's largest network of local groups. Meetup makes it easy for anyone to organize a local group or find one of the thousands already meeting up face-to-face." MOG: Niche music. "MOG, your personalized gateway for music discovery. With MOG, you can find, share, and talk about the music you're into, from Abba to Zappa." Muxlim: Niche Muslim. "Our vision is to connect the world's Muslim communities to each other, and to the wider world, through shared online experiences." MyChurch: Niche Christian. "MyChurch.org is a free online tool for churches to extend their communities between Sundays." myspace: Niche general. "Create a community on MySpace and you can share photos, journals and interests with your growing network of mutual friends!" nexopia: Niche general. orkut: Niche general. "Connect with friends and family using scraps and instant messaging. Discover new people through friends of friends and communities. Share your videos, pictures, and passions all in one place." PassportStamp: Niche travel. "PassportStamp, the site for tracking your overseas visits." Plurk: Niche general. "A really snazzy site that allows you to showcase the events that make up your life in deliciously digestible chunks." ryze: Niche business. "Ryze helps you expand your business network. Get a free networking-oriented homepage. Make quality business contacts." spoke: Niche business. "Where business people connect." Student: Niche students. "The social networking and student resource site just for students." Tagged: Niche general. "Tagged helps people keep in touch with their friends and make new ones. We provide a fun media experience featuring expressive custom profiles, fluid widget embedding, integrated video, chat, and much more." Wasabi: Niche general. "Wasabi aims to be the default site for joining and creating clubs and Communities for any hobby, sport, business, political or other interest or affiliation."