The original photo was taken in 1927 at the Fifth Solvay Conference where the most prominent and outstanding physicists and chemists got together to talk science.
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.
Google Street View is now also providing thousands of miles of Street View imagery in the affected nuclear disaster areas that were collected before and after the disaster.
Due to work flow optimization guys at Adobe decided to hide some of the filters in Photoshop CS6, if you are missing some of them, you can easily make the visible again.
Image having a Google Calendar at your hand and disposal in a matter of only one click. Pretty nice I would say, let me introduce you to this mighty useful Google Chrome extension.
If you don't have installed program for editing PDF documents on your computer, then you can use web application PDFescape which allows you to edit your documents in your browser.