Protocol
Social networking sites vary greatly based on their feature sets and raisons d'être, but there are some common elements across most of them. This section will introduce those elements.
Profiles
The building blocks of a social network are user pages, known as profiles. Your profile page can include information about you, including employment information, educational history, relationship status, contact information, and interests and hobbies. It can link to your photos and your friends' profiles, and allow visitors to contact you, often through private and public messaging. Social networking sites differ widely in how much they allow you to customize your profile: MySpace allows custom backgrounds and graphics, Facebook lets you add new blocks of content from applications, and LinkedIn gives you very little control. It's a good idea to do whatever you can to make your profile reflect your personality and personal brand, but don't go crazy—everyone hates the seizure-inducing profile with alarmingly loud pop music.
Profiles are for real people. You should have a profile; your company's logo should not. Profiles contain personal information; a brand can't have a favorite movie or book. If your company has a recognizable spokesperson, you can create a profile for him; otherwise, stick to a page or group for your company information.

Figure 4-3. This is an example of connecting with ...
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