What is your social media ettiquette?
My rules is that I use LinkedIn for business and professional colleagues. I only accept invites from people I either met in person and/or I have interacted with.
Facebook for friends and professional associates so I can keep up with relevant news feed. Twitter for almost everyone except blatant spammers.
I saw this interesting one:
http://blogs.forrester.com/groundswell/2009/09/dear-groundswell-your-business-social-netiquette-questions.html