Quoted: Introduction
PerceptualDiff is an image comparison utility that makes use of a computational model of the human visual system to compare two images.

This software is released under the GNU General Public License.

Quoted: Learn more about Microsoft Pro Photo Tools 2 a set of tools for photographers to perform various tasks with their images—including RAW captures.

Quoted: When it comes to paper prototyping made in a digital fashion, there are two tools that really stand out: Balsamiq Mockups and iPlotz. People often wonder how the two compare one to each other and since there is no comparison available I thought it would be a good idea for me to write one. So here it is.

Lighter weight than downloading the entire Picasa desktop clicnet.

Quoted: I wrote this little program in Java (5.5 or above) so he could download an entire album at once. I figured I might as well put it on the internet for everyone else who might find it useful.

Another online Getting Things Done site/service.

An online Getting Things Done site/service.

Quoted: Vitalist is a web based task manager designed to work with Getting Things Done (GTD) productivity system by David Allen. If you are on the web and use GTD, you should be using Vitalist.

Quoted: I’m a fan of GTD - Getting Things Done - The Art Of Stress-free Productivity. It’s simply a technique to getting things done and more efficiently.
...
This category will contain techniques and how I use online web application tools in this search.

Recommended by Roy on http://thisuser.com. Looks pretty cool.

Quoted: Mockups feels like you are drawing, but it's digital, so you can tweak and rearrange controls easily, and the end result is much cleaner. Teams can come up with a design and iterate over it in real-time in the course of a meeting.

Looks like a great set of tools for MySql.

Quoted: Essential command-line utilities for MySQL (formerly MySQL Toolkit)