A friend pointed out a free and nifty app that can be great for mapping circuits, making "how to's" etc. It lets you can capture various forms of multimedia and link them together to make a slightshow with pictures, text, video and audio.
Let's say you "record" how you installed your tile floor in the bathroom. You can then share it with others. And there is a function coming up so you can go up on the internet and look for a laying tile floors. Which is handy. But you can use it for practically anything.
You can find it here www.chainr.com. What do you think?