Source for UV building textures

Can someone point me to a site which has free UV building textures? I have found several sites which have building textures, but all of these only have the front of the building. I found this great tutorial on how to UV texture a basic cube (http://www.youtube.com/watch?v=Jn88llnoZ6g), but I really could use a source to find the images, or perhaps a tutorial on how to create a uv-ready texture, if that’s the usual way to go. Thanks.