Penelope and I went blueberry picking last weekend and came home with 5 pounds of blueberries. We used 2 pints for a blueberry pie (recipe and tutorial to coming soon!) and froze the rest.
First I picked off all the stems and picked out any red and not fully ripe berries. I also looked for berries that had been crushed or cracked. Then I spread them out on to cookie sheets and put them in the freezer. DO NOT wash them before you lay them on the cookie sheets.
I put some in the deep freezer and some in our side door freezer connected to our fridge. I let them freeze for about two days and then I took them out and put them in gallon freezer bags and laid them flat, like bricks. By freezing them on the cookie sheets first, the berries do not stick together in the bag and you can scoop out a cup at time as needed. The owner of the blueberry farm that we visited said that she keeps them in her deep freezer for up to a year, in a side door freezer they would last six months.
This is a blog post I found with a yummy blueberry recipe and she also had some Aruvedic information about blueberries.