As most of you surely know, at http://splendorveritatis.org/ there is a collection of Cistercian (both observances) chant books from the first half of the 20th century online. In large colourful scans.
It is a great resource for anyone interested in Cistercian liturgy and chant, but it is very painful to navigate through the scans without an index listing the contents of each book.

I started making such indices. There is a simple php application hosted temporarily in a subdirectory of one of my websites http://inadiutorium.xf.cz/splendorveritatis-index/ .

The reason I write about it here is that I hope to find someone willing to help collecting the data on some of the books or it's part. I am just at the beginning of the Trappist Antiphonale and there are 4 more volumes worth indexing...
The data are written in text files (freely viewable and downloadable there), the application parses them and produces webpages with hyperlinks. The format of the data files is really simple and easy to understand and I am ready to provide explanation if necessary.

Even those not willing to help are welcome to visit my work-in-progress index and possibly discover some interesting piece of Cistercian chant with it's help - currently on the first 170 pages of the Trappist Antiphonale.