Friendster — Friendster is an online community that connects people through networks of friends for dating, making new friends, and helping your friends meet new people. Friendster enables users to create their own personal, private community, where they interact with people connected through networks of mutual friends.
hi5 — an online networking site for meeting new people, connecting with friends, and sharing ideas. Has 80+ million registered members in more than 200 nations. Meet new people through mutual friends or interests. Personal profile required. No cost to job-seekers.
Jigsaw — an online business contact marketplace where marketers, recruiters, and sales people can buy, sell and trade business contact information. The Jigsaw marketplace offers members access to an online database of fresh and accurate corporate contact information and increases efficiency by shortening the time required to find valuable business contacts. Boasts 500 corporations and more than 600,000 members.
Linked In — strives to make your existing network connections more powerful. LinkedIn lets you see the whole network of people you can reach through your trusted friends, and search for the contacts you need to get business done. If your 20 connections each connected with 20 more of their own, you would be able to make contact with more than 150,000 professionals. LinkedIn enables users to make deals, as well as find employees, industry experts, jobs, and contracts by making contact with the right professionals. Your friends introduce you to their friends, and they introduce you to the people you want to contact.
MediaBistro — is dedicated to anyone who creates or works with content, or who is a non-creative professional working in a content/creative industry, including editors, writers, television producers, graphic designers, book publishers, people in production, and circulation departments – in industries including magazines, television, radio, newspapers, book publishing, online media, advertising, PR, and graphic design. The site’s mission is to provide online and offline opportunities for meeting each other, sharing resources, becoming informed of job opportunities and interesting projects, improving career skills, and showcasing work. Listed as a Forbes Best of the Web site.