Social networking is big business. Valuations put on companies such as Facebook, LinkedIn, and Twitter as they go public -- all in the billions of dollars -- confirm this. Facebook's domination of the social networking space is inspiring competitors. Google launched and is heavily promoting Google+, while image-based social networks Tumblr and Pinterest have seen tremendous growth in the past year. Each of these has unique characteristics, demographics, and search challenges. A major marketing effort supports Google's latest foray into social networking. Each of these newer social networking sites has some interesting search challenges and opportunities. To get familiar with each one, get an account and spend some time playing with it, exploring options, and using it to join a community and find your own work or personal uses. For those with less time or more concern about privacy, try browsing the content without setting up an account. Each has a different way to do this.
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