Batch files let you run a series of commands without having to type them in one by one. Batch files, usually with the extension .BAT, are an important part of your Windows computer. Michael "Doctor File Finder" Callahan explains.

Posting large images online can take a long time hog your bandwidth, so before you post all those high-res photos of your family vacation to Flickr or Facebook, consider resizing them first. We'll show you how to resize multiple images at once, quickly and easily with Fotosizer.