Currently, for example, if I want to find a score by Shostakovich, I go the the Composer index and click on Shostakovich. This takes me to a list of Shostakovich scores. I then click on a selected title. This takes me to a page of information about the piece. I then click on the PDF link and this takes me to the score itself.
What if, instead of having the PDF link, you had a link to another Internet site for the score. Everything else would be the same; that is, there would be the composer's name in the Composer index, there would be a list of composition titles, which would in turn take one to an information page. The equivalent of the PDF link would take one directly to the score at another Internet site.
This idea was inspired by my looking for Bruckner scores. I looked first on the IMSLP site. Not finding them there, I found that they are available at the http://www.dlib.indiana.edu/variations/scores/
You could have a Bruckner listing in the IMSLP Composer index, a list of Bruckner compositions, which would take you to a composition's information page. The link to the score itself would take you to, for example, http://www.dlib.indiana.edu/variations/ ... index.html
, which would be practically the same as going to the score on the IMSLP site.
Such a change in the IMSLP philosophy would allow for a more comprehensive site for finding scores without the labor of scanning, uploading, etc.