I’ve checked out a lot of sites on DIY homemade wind turbine / wind generator. I’ve narrowed it down to the top 5 based on the completeness of information, and how detailed it is. On top is what I considered the best one because it is composed of 3 videos on how to make your own wind turbine. A video of how to do it is simple the best instructional material for homemade wind turbine.
1.  Detailed  Video Instruction on how to make your own wind turbine
Part 1

Part 2

Part 3

Yes, you read correctly – a solar powered windmill – which may seem strangely redundant, but it’s actually a model kit for educational purposes. The windmill uses solar power to demonstrate how a real windmill would work.
The kit consists of plastic parts, a solar panel and a motor. Just snap it together (some parts may require gluing for stability), stick it in some sunny goodness and away she’ll spin.
Recommended for young ‘uns aged 13 and up, it’s available from GrassRootsStore.com in Toronto for $25 CDN. Here’s the product page.
[via EcoFriend.org]