Not your average pixel effect tutorial, let me show you a nice little trick where you apply the normal square pixelated effect and turn it into checkered, diamond looking photo pixels.
In this day of age, it's very practical to have a Windows 7 installation on your USB key, for many netbooks and devices don't come with CD/DVD drives anymore.
Facebook caches already shared pages for better performance, but this causes issues because Facebook can still show the older version of the page. Today we will learn how to refresh cache.