Here are a selection of links that I have often found useful:

Kodak’s Glossary of Motion Picture Terms:

An A-Z glossary of film language.

World Broadcast Standards:

A list of the world’s broadcast standards by country.

Creative Cow:

One of the best online support communities for media production specialists.

Avid Community:

Avid’s very own online community where you can watch the latest tutorials and troubleshoot with experienced Avid users.

LAGCPUG:

A Final Cut Pro user group based in Los Angeles. This online forum is open to the world and it’s where you can find the answers to those pesky technical questions you have about Final Cut Pro.