Here is a list of resources you can use as you start to search for internships: (just a start for now!)

How to Get a Production Internship
Getting an internship can be hard work!  You need to be resourceful, willing to work, and also, you need to know what you want.  Where do you want to be geographically? Do you have a specific interest? Or, are you seeking experience to learn what you might want to do in the future?  Once you land an internship, dig your feet in!  Ask questions.  Be as useful as you possibly can.  Think about who you might want to warm up to for future recommendations.  Most of all, make the most of whatever situation you are in.  Internships can be a great first step toward learning more about the industry and learning about yourself.

Great list of NYC resources – not necessarily for internships, but if you’re looking for where independents filmmakers are, here’s a place to start.
WNET Reel 13 Resources 

Studios and Production Houses
These tend to be competitive, so start early!

• Sony Pictures
• Warner Brothers
• NBC Universal
• NBC Universal Careers
• Lucas Films Jedi Recruitment Program

Screenwriting Internships

• Writers on the Verge – a 12 week program focused on polishing writers and readying them for a staff writer position on a television series (NBC Universal)
• Disney/ABC Writing Program – designed to expose writers to key executives, producers and literary representatives – all essential in the development of a writing career.  Work one-on-one with a current programming or development exectutive. Prepare for television staffing.

Lists

• New England Film Jobs
• InternAlert
  
• Entertainment Careers
• Internships.com
• UCLA Summer Internship Program
• NAACP Diversity in Hollywood

Documentary Opportunities:

• Kartemquin Films – Chicago (great program)
• Cabin Creek Films – Barbara Kopple – NYC
• Fourth Floor Productions – Errol Morris – Cambridge, MA

Television Stations:
Locally there is WCAX (CBS affiliate), WPTZ (NBC affiliate) and FOX44.  WCAX has a formal internship program to apply to.  The others you can call and ask!  Local cable access stations include VCAM (great place!) and RETN.  Students have had positive experiences at all of these stations.
Major networks all have internship programs that you can apply to.

Alternative Media:
Democracy Now a New York-based independent, non-commercial daily radio/TV/Internet newshour seeks interns on a regular basis.  Need to be in Manhatten and need a 2-month commitment