An extremely effective mind mapper
3D Topicscape’s eye candy is the dialectic that sets it apart from other applications. At first glance one might think that its UI paradigm of three-dimensional flight over a plane of topical pyramids is a gimmick to draw the eye past conventional applications that draw clipart-like graphics on a paper. 3DTS uses its model effectively, delivering a heavy-duty model that MindJet and others can’t touch in most ways.

Here is a list of disc cataloguers, their websites and relevant threads in DC.
If you make any suggestions I will add them to the list.

I have been playing with this sophisticated XML editor for the past half hour and it looks pretty good. I can't commit to it, but this seems worthy of a mini-review. This is definitely a contender for a top ten editor if it lives up to its potential. And it's freeware.

From their website:
XMLPad 3 new features:
-- XML Schema full support.
-- New and improved look & feel.
-- Project system with CVS support.
-- XML Schema editor with color syntax highlighting, line numbers, element range navigation, and context-dependent source assistant wizard.
-- Preview and printing XML Schema in graphical diagram window. The diagram is synchronized with XML Schema editor.
-- XML Schema documentation generation (ws3p.xsl) with diagram images.
-- XML Schema validation and XML files validation against the underlying XML Schemas.
-- Very big schemas (such as uccnet or xCBL35) use XML Schema binary cache in their implementation that mitigated
performance issues in validation and analysis. Every schema used in validation is compiled in binary format
on first use and later could be loaded from cache.
-- Generation of XML samples from XML schema or a sample of XML Schema from XML file. Converting XSD to DTD and DTD to XSD.
-- Schema component renaming (refactoring), navigation between schema components (Goto definition/Goto reference)
and navigation from XML data to appropriate schema component.
-- Regular expression builder and enumeration builder.
-- Schema-aware XSLT editor and debugger with Active script support.
-- Support for JAXB and Castor binding.
-- HTML & DBF import.

Einstein Puzzle is a neat little game created by Flowix Games for people who like challenging puzzles. I have played it for a long time already and have solved it on several occasions, but definitely not every time I play it.

Website quote:

Einstein puzzle is a free cross-platform open source remake of old DOS game Sherlock which was inspired by Albert Einstein's puzzle. Einstein said that only those with an intelligence quotient of 98 percentile and higher should be able to solve it.

The main window launches by hitting shift & escape instantly. Then by start typing the second letter the program starts to present results, which can appear in 2 views, detailed showing filename, size and location and basic showing only filename, as the following snaps. The main results window offers some nice options when right-click on a result and anytime if choose Explorer Options it will show you all the typical explorer options. All operations of Avafind can be done through keyboard, no need for using mouse at anytime.

Poisson Rouge (French for Red Fish) is a beautifully done Flash website that is primarily directed at children, though everyone can enjoy it.  I have used this website with literally hundreds of children and every single one of them has enjoyed it.  This is a wonderful example of what can be done with the Flash medium.

When you first get to the website, it will look like a bedroom with some toys on a shelf, a few items on the floor, a cradle, and a leaf shaped window.  To explore the site, you simply click on the different parts of the screen.  An easy way to get kids started is to tell them that the mouse pointer will change to a hand with its index finger extended when they are pointing at something that they can click on.

Clicking on any of the areas on the main interface will bring you to a new part of the website.