Networking.  Say it out loud.  Make it your religion.  People are everything; behind every computer, desk, and phone, is a person.  Someone that’s probably very similar to you, and more likely than not, very wiling to help.  This is especially true in the realm of internships. You’re a student looking for an experience - and people love to help students learn. Don’t be shy. 
 
There are a few good rules to go by that will help you network in an appropriate manner.

Don’t be scared…

Don’t be afraid to ask for help.  People love giving guidance; so let them know that you are interested in what they do.  And remember, take it for what its worth.  You don’t need to follow advice blindly, just use the experiences of others to help guide your own.  And if someone is not interested to give you the time to talk about what they do, than that speaks some about what they are doing.
 
Follow up...
 
People forget things all the time.  That doesn’t mean that they have no interest in helping out. Remember, you are not on their “A” list of things to do.  Sending a polite email reminder is never out of place.  Email is one of the most powerful tools as it is non-intrusive, fast, and so frequently used.  For every contact you make you should always be persistent and follow up.  Worst case scenario you get an email back that says they are too busy to help out right now – and that is better off than waiting around for them – just move on to the next lead.

6 degrees...

I am honestly not sure if 6 degrees of separation is a fact or a myth, but realistically you are definitely connected to a lot more people than you think.  This goes back to rule number one – be proactive in your search.  Ask your friend’s friend’s friend, and your cousin’s buddy who interned at NBC last year if they can make an introduction.  It doesn’t take much from a contact to provide a foot in the door.  Never forget to send a thank you email.

A few final pointers…

Be appropriate:  Make it the right place right time.  Getting an email or a card while out to dinner is a great idea.  Just don’t go asking if they can give you an internship at the dinner table.  Seems obvious, but be wise in your decisions.  Treat people as you would like to be treated.

Timing is important:  It is recommended that you email any potential lead early in the week.  Give yourself the ability to follow up as the week moves on.  A Friday email can easily get lost in the bunch.