SereneScreen's Marine Aquarium is a very famous and classic 3D tropical fish aquarium screen saver. It has won numerous software awards and topped the download ranking of many software download websites. Even better, it was recommended by Microsoft and included in their Microsoft Plus! for Windows XP (AKA: WinXP Plus Pack) - as this OS's official/built-in screensaver. Plus, it is so popular that many computer sellers use it too, you may have noticed this.

Using the three free, open-source and original system components (PHP, MySQL, and phpMyAdmin) to develop, test, and deploy Web applications locally is almost the only best option available at the moment. Thereinto, Apache Web server and PHP hypertext preprocessor are preinstalled on Mac. But they are not enabled by default, and the pre-installed version of PHP lacks many utility features. The MySQL needs to be installed and configured separately. Unless you are able to expertly use command lines in Terminal, installing the one-stop solution MAMP (PRO) is much simpler and more efficient.

To learn 3D game development with limited pockets, I guess you've tried many classic, free, open-source game development engines like TV3D (Truevision3D), OGRE and Irrlicht Engine. By contrast, the pros of TV3D are easy to learn and get started with; its cons are that it was built based on the ActiveX control and requires the RunTime DLL to be registered before running; OGRE is better than Irrlicht in that it has a capable and vigorous engine framework, and supports for extending new functionality in the form of plug-ins (this is better than Irrlicht); but its downside is that it's not easy to get started with.

Tiled (full name: Tiled Map Editor) is currently the most popular, powerful and flexible tiled map/level editor for all types of 2D games, developed by Thorbjørn Lindeijer in 2008 (written in Java, therefore it's cross-platform). It is identified as an edge tool for 2D game developers to quickly create game maps.

Mind map (also known as mental mapping) is a simple yet effective and revolutionary graphical thinking tool that is used to express our divergent thinking. And the mind mapping tool is like a digital alternative of the traditional memo, wall map or whiteboard, with which you can organize brainstorming, capture ideas, communicate and plan information just through a single view.