I'm participating in a Bloggers Unite/Blogcatalog.com "Act of Kindness" event slated for December 17, and got the idea for a different sort of way to help out at least one of our thrift charities.
I've developed a Decorating with Thrift Store Items tips page within Squidoo. It also includes some hand-picked resources on thrifting and collecting through Amazon.com.
Now, I don't blog to raise money and I don't have online advertising on my site; I don't intend that to change, either, simply because I don't feel other folks should have to pay for my blogging habit.

However, I DID have the option with the Squidoo resource page, that any money raised through it could go to the Salvation Army. Which I've done.
I love the idea of spreading the good word about charity thrifting, AND helping one of the charities with some revenues. So we'll see how it goes.
If anyone wants to check out the page, you can see it here:
http://www.squidoo.com/thriftshopromantic/