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.
Basic tutorial for everyone who want to will learn how to use a dedicated tool for really quick changing of any color you want on a photograph with the help of trusty Photoshop.
If you want to make a clean install of the new OS X Mavericks or even the older versions of Mac OS X, than I strongly suggest you to create a bootable OS X key or a drive.
In case you didn't know, you can turn you LG G2 Android powered smartphone into a Wi-Fi hotspot and use it to surf the web with any other wireless device like notebook, tablet or a smartphone.
