I think my favorite is Pangloss, because it makes interlinear data interactive. For instance, Alex Milchaud’s corpus of Na, one of the many many subfamilies of Tibeto-Burman, has a nice interface with a lot of options for configuration. Here, for instance, is a text called The sister’s wedding:
It would be interesting to hear what others think about archival interfaces, and not just text interfaces like this one: also corpus overview interfaces, interfaces that have scanned images of manuscripts, etc.
Let’s remember to be positive, the people who make these things are our friends and allies!