I referred to Project Gutenberg obliquely here, but browsing their site I found that they’ve implemented distributed proofreading. This is a very good thing. I did one book, Hiram, the Young Farmer, for PG a few years ago, when I was in college and time wasn’t so precious. The OCR went quickly, but the proofreading was slow going and error prone; the story wasn’t exactly riveting, but it was in the public domain. (In fact, I just took a look at Hiram and found at least two mistakes. Doh!)
But Distributed Proofreaders solves the proofreading problem by making both the scanned image and the OCRed text available to me in a web browser. Now I can proofread one page at a time, easily take a break, and even switch between books if I’d like. Also, they’ve implemented a two phase review, much like Mozilla’s review and super review process. Hopefully this will prevent mistakes from being made, since these are going to be the authoritative electronic versions of these documents for some time. Linus’ law probably holds for text conversion even more than for software development.
Now, it wasn’t apparent to me from the website, but I certainly hope the creators of this project have licensed it out to businesses–I can see this application being a huge help for medical transcriptions (work from home!) and any other kind of paper to electronic form conversion.