Here is a set of the most recent "interesting" images (that is, those that have changed significantly from the last picture) taken by the CatCam. The most recent image (now) is in the upper left, and the least recent image is in the lower right.
Note that since this page is static, if you leave the page open long enough for a new recent image to be saved off, then the thumbnails you click on will be inaccurate (they will show an earlier image). This is a known issue, and fixing it will probably not be worth the minor issue it represents. If you've left this page open for long enough, reload so that the thumbnails will be accurate.