Tethering your DSLR camera to a computer opens a whole new world of possibilities: you can instantly view your shots on a large screen, trigger your camera remotely, practice the art of time-lapse photography, and perform other clever tricks. While commercial tethering software for Windows and Mac OS X often costs serious money, you can enjoy all the advantages of tethered shooting on Linux free of charge courtesy of Entangle. This tethering software lets you control practically all camera settings, trigger the shutter from the computer, view a live preview of a scene, and automatically download captured images to the computer.
Sharing is caring, and there is probably no better way to share your photographic masterpieces with the world than adding them to the Wikimedia Commons pool. While Wikimedia Commons features its own web-based tool for uploading photos, a dedicated tool like Commonist can come in rather handy when you need to upload multiple photos in one fell swoop.
Recently I've seen a resurgence in chatter about Tilt-shift effects in photography. I think it has stemmed from the use of tilt shift in the introduction videos for the 2011 Eurovision Song Contest. Here I outline a brief tutorial in achieving tilt-shift miniaturisation effects using GIMP