Well, I have been working on this for a while now (all winter actually), and it has recently been launched: http://flypattern.org/
My plan is to have a place where I can preserve all the old patterns, not only salmon, but also trout, char & grayling. This is the page I would have loved to have access to when I started to tie. A single place where the patterns can be found just as they were written in the original books, but also a place where you can find substitute suggestions, material pictures and pictures of the patterns from different tyers.
I have written up a longer introduction to the site and information about the functionality here: http://flypattern.org/about
Hope this can be of interest to all, and just remember: this is a work in progress, so if you have suggestions or find a error: write a feedback on the site - all pages have a feedback form.