When I first started this blog, I spent a lot of time writing detailed reviews of different transcription projects. This has become difficult as my available time shrinks and the number of crowdsourcing projects grows. So when Kate Bowers posted to the Society of American Archivists mailing list asking for a directory of transcription tools, I figured it was time to take a different approach.
The link above is a Google Documents spreadsheet listing different tools and the features I thought were relevant. It's been updated several times over the last few weeks, and I'm pleased to see that it's expanded to include a score of technologies. I hope it's useful.