Random bits of social media trivia

Let me share some random bits of social media trivia.  These are things that I found while keeping up with Facebook, Twitter, LinkedIn, and Google+.  Note that they will change as social media evolves and adapts to new challengers, such as App.net, Tent, Path, etc.

• LinkedIn likes/comments do not make a post go viral because the post does not appear on my connections's Home page.
• There is a way to send tweets to Facebook updates, but no way for tweets to be displayed on LinkedIn automatically.
• Twitter provides the most comprehensive set of APIs among Facebook and Twitter yet it has the most restrictive language on API terms of use.
• While Facebook and Twitter allows a post to be deleted via API, LinkedIn does not allow the post to be deleted via API.
• While LinkedIn and Twitter supports private message via API, Facebook does not support private message via API.
• Facebook, LinkedIn and Google+ require users to have one account with their real name, but Twitter does not.
• Facebook, LinkedIn and Google+ support follow model (i.e. one-way subscription) although it was first popularized by Twitter.

Please let me know if you see any error, or things that you want to add to the above list.