By OpenWith.org provides detailed information about most file extension and links to free programs that can open and create each type of file. Have a file you don't know how to open? Think you need an expensive piece of software to open it? Chances are there is a great free program that's just as good as the expensive one, and you'll find it at OpenWith.org.
LEGO Digital Designer is a program that lets you build with LEGO bricks on your computer. It's available for both Windows and Mac OS X.
Unit Converter will convert a whole myriad of measurements between different units. Included conversions include Length, Area, Density, Time, Temperature and a whole raft of others.
Crosstips is a great source of help if you like solving crosswords but aren't necessarily any good at it. Tell it how many letters the word is and what letters you already have and it will list a selection of possible solutions.
Meta
