Online
I think Lynda.com is the best service for our industry. It has basic to advanced tutorials taught by awesome teachers. Final Cut, Avid, Photoshop, After Effects, Shake, Premiere Pro, Vegas are just some of the subjects. I have a yearly subscription.
Tip: Look for online coupons, i got a yearly subscription with course downloads for the regular yearly price.
Creative Cow has forums on software and hardware that film makers use plus awesome tutorials. There are a million things to see here!
Are you making an independent movie, you need to spend some time here. Film Threat will review any movie sent to them, any press is good press right?
Toolfarm sells plugins for tons of different programs, they have GREAT sales and they are exclusive sellers for certain products such as Red Giant software. They also post news about upcoming programs and industry trends on software.
DVi has everything you want to know about digital cameras.
Do you want to know EVERYTHING about the DV format? Adam Wilt has EVERYTHING you want to know, and i mean everything.
Free Magazines
Great publication for smaller budget technology, if you sign up for one free magazine make this it!
Real Hollywood stuff but you can get some great ideas of what the Big Boys are doing.
This is mostly high end postproduction news, but every once in a while there is something for us little guys.
Books
1. Three books here starting with the "Ultimate Film Festival Survival Guide". This book is so easy to read because its jam packed with great/funny DOs and DONTs. My copy is outlined, circled, star-ed and beat to crap because i read it almost every day (in the can..). I hope to run into Chirs Gore, i bet that guy can party!
*funny story* I've had this book for several months and I'm sitting there (on the can) and i see a Dances With Films advertisement. I'm like "damn that picture looks just like a shot i did once".... Now the picture is in black and white and not color so i wasn't really sure, after a few moments i see a tiny print "courtesy of Ghosts of Hamilton Street" which is a movie i shot a few years ago. I almost flipped out!!! How cool, a book I'm learning from has a full page ad of a movie i shot. SWEET!
2. I have the first edition of this book and it has everything from theory to practical exercises. After this book I really started seeing how light shapes everything. If you want a good looking film, light it and this is a good start. Other than reading books you need to just do it! An easy way to get started is still photography with video lights (they don't give you the powerful flash of photography lights).
3. A great book to help you distribute your film. It is a long read so i gave it to my producer to read HA! I feel like this is a nice campion to the Ultimate Film Fest book. My producer is getting great ideas.
(If you buy from amazon from these links i get a few shinny nickels, honestly go find the best price and get it from there!)