The Jungle Book author Rudyard Kipling did explain how the leopard got its spots and camel its hump, but he never answered how the zebra got its stripes.
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.
VirtualBox is a great free cross-platform virtualization program that enables you to run Windows, Linux, Mac OS X and other operating systems on you Windows, OS X or Linux computer.
Let me show you a nice little Chrome trick which I personally find very useful. You will learn how to save all the open tabs so you can view open and view them any time later.