Salvation Army, Toys for Tots are some of the more popular ones. I saw on the news Toys for Tots at local stores yesterday.
Our local high school is gathering things for the kids in PreK this year. It teaches the older students about caring for others and it is helping us a lot. My oldest first year of school and our hardest year as a family. I cried when I heard they were doing this for her, because I had been trying to find a way to get stuff for the kids this year.
I know our church has and angel tree every year, I am not sure how the pick the children.