Camerapedia…
This is a great idea, one place on the web that may eventually contain every camera with all the important things you need to know about just about every camera – “Camerapedia.org is a free-content encyclopedia of camera information. The intention of the camerapedia Wiki is to be a repository for information and links to information about all still camera brands and models. You know your camera equipment better than anyone. Please share that knowledge with everyone and contribute.” Link.
Ever wonder why some of the ice cubes in your ice tray have little spikes? Here’s why and here’s how to make your own spikey ice cubes “With ideal conditions (distilled water, a fan promoting evaporation and rapid cooling, -7 degree C temperature, an empty freezer) about half the cubes in an ice-cube tray will form spikes” [
New Instructable on how to convert a computer power supply into a power supply for a lab bench, mat_the_w writes “I started into my main electronics classes, and needed a good power supply for working on lab projects at home in my room. My roommate Adam told me about somebody online who had converted a spare ATX computer power supply into a lab bench power supply, so I decided to do the same thing.” 
Interesting and sorta gross “epiSkin jewelry extends biological identity by combining technology and design into a new decorative body surface. This project is an exploration into the decorative technological control over biology to create an artifact which is a hybrid of both. Cultured in a lab, this biological jewelry is made of epithelia cells which grow to create an artificial skin. The cells are grown into custom designed forms, controlled by the artist. The cells are incubated for a period of time, following which they are stained with a custom dye. The skin is then visibly sealed into a wearable object.” [
The MAKE team is pleased to announced that we’ve teamed up with Instructables! What’s Instructables? It’s a convenient system for documenting any how-to project, it’s Wiki + Flickr + step-by-step collaboration. You can use images, text, ingredient lists, CAD files, and more. Read all about it 
Heres how to take super-close photos, using a Pringles potato chip can – “So you want to take pictures of things up close, do you? You have gone tired of all the regular ways of doing so? Ready for bellows and reversing rings, but can’t afford them? Have no fear, there is a far cheaper way to get a reasonably good result!” Thanks Digitaler Lumpensammler! 
Ask MetaFilter has an excellent question (How to make things?) with some great replies – “I’m looking for books that tell general building techniques, for example, how to weld, basic wood working principles, how to fabricate things, etc. Also, websites or blogs that cover that sort of thing would be nice. Also, I’d prefer books that suggest ways to build things without a lot of tools (For example, I own a circular saw and a Jigsaw but no table saw). In short: I’m looking for things that will teach me basic building techniques from wood to metal and electronics.”