Camera images usually contain additional description about camera settings and scene information of the the picture taken. By using EXIF, you can view this data online.
Another mind-blowing timelapse project powered by Google in collaboration with Time magazine. Check out the amazing satellite images, taken from space from 1984 to 2012.
You don't need Photoshop or some other advanced piece of software to resize a large number of images at once. You can use Microsoft Office Picture Manager which is part of the Office suite.
