I feel like I should be doing more! What about you?
I found United We Serve at serve.gov, you can just plug in your zip or city and it pulls up volunteer opportunities and then you can refine the list depending on what you are interested in. They have toolkits to help you start your own food drive or clothing drive or whatever your volunteer idea may be. They even have widgets for bloggers so you can have them directly on your site or in a post. I grabbed a couple, you can search from here for opportunities, just put in your zip or location.
Feel free to grab the widgets for your own use as well, let's spread the word!