Three Degrees of LinkedIn
In our previous post, Types of Direct Connection Requests on LinkedIn, we talked about the various types of connection requests on LinkedIn. In this post, we take a look at the three degrees, or tiers, of your LinkedIn network.
Three Degrees of LinkedIn
You’ve probably heard of the trivia game, Six Degrees of Kevin Bacon. The game is based on a concept that originated in scholarly analyses of offline social networks called six degrees of separation. The hypothesis behind the concept and the game is that every person in the world is no more than six friend-of-a-friend jumps away from any other. A landmark study by famed psychologist Stanley Milgram actually determined that people in the United States were no more than three degrees of separation away from one another.
There’s no telling if Milgram’s theories gave birth to LinkedIn’s three-tiered networking policy, but regardless, that’s how the site defines the size of your network.
People you are directly connected to are your First Degree network. When you visit their profiles or see them listed in a search, their names are followed by a 1st icon.
Your First Degree contacts obviously also have connections. These secondary connections are your Second Degree network, denoted by a 2nd icon. You can connect to these Second Degree folks by passing a connection request through one of your First Degree connections. That First Degree connection can decide whether or not to pass on the request, and you’ll be none the wiser. If the request is passed on, the Second Degree contact is free to accept or reject the request just as if it had come from any other source. Obviously the number of people in your Second Degree network is larger than your First Degree population.
The Second Degree connections have connections themselves, and this is the limit of your addressable network: your Third Degree network. Just as with the Second Degree connections, you can pass a connection request along to a Third Degree by first passing it to a First Degree contact, who must decide to pass it to the Second Degree connection, who similarly must decide to pass it to the Third Degree connection. Confused yet?
When you add up all the people in your First, Second, and Third Degree networks, you have your total addressable network. Depending on the number of contacts each member in your addressable network has, you might be surprised at how many people you can be potentially connected to. (See our rock star encounter in our previous post Alternative to Being a LION.)
We recommend that when you want to contact someone you don’t know at all that you use the method of passing your request through your network described here. It’s like the difference between cold calling someone and getting introduced — being passed through a presumably trusted member of the target person’s network implies a similar endorsement, and will be more likely to help you avoid getting IDKed. However, be aware that some have put the likelihood of getting introduced by a Second Degree contact at lower than 80 percent, and the likelihood for Third Degree contacts is vanishingly small.
Next up: Finding People to Invite to your LinkedIn Network
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 Milgram’s Small World experiment: bit.ly/crdJBb