Instructables

This is a huge and ever-growing database of fun and occasionally serious projects. There are some really capable crafts people, electronics fans and assorted hobbyists here, and the chances are that you won't be able to emulate most of the devices that result from their incredible, dare I say geeky, skills. However, for many people I don't think that will be a major concern as it's also incredibly good fun to just surf around the site looking at what smarter, richer and more talented people seem to be able to find the spare time for. But if you want to roll up your sleeves and have a go at one of the projects, they're well illustrated and broken down into clear steps which aren't difficult to follow, and the sheer range of ideas - from a paper airplane to a "cacophonous event" makes this site hard to leave once you've got into it.

Lastly, this definitely isn't a site exclusively for adult male nerds - there's something for everyone in the many categories. Even kids will get something from looking at the videos of weird and wonderful devices, even if you do have to discourage them from borrowing your office laser pointer to make a music and light show.