I make a number of  tutorials available online for photography clients, computer tuition clients and my workshop groups. Generally these are only made available for specific download by each group.

I put together a quick beginners guide to iMovie on the right, for a workshop I ran in conjunction with The Arts Awards Programme.
This example is free to download and use - go for it.

I also make tutorials on request for both photography and computer tuiton clients. As an example here is how to Print from Flickr using their Snapfish service.