For all of my freezing and preserving, I have been using some very helpful documents from the University of Missouri Extension program where I took a canning and preserving class last summer. I thought I'd include a link here to share some of those documents. You can find tips for freezing all sorts of veggies - blanching times for them, etc.. And there are canning documents, too.
UNIVERSITY of MISSOURI EXTENSION
Check out all of the "Quality for Keeps" guides in the Food Preservation section under "Nutrition and Health".
Here's a link to K-State's as well:
K-STATE EXTENSION FOOD SAFETY
In the Publications section of this site, look for all the instructions on Food Preservation.