Baseliner
I’ve been experimenting with baseline grids and after created three tiling background images for various grid sizes I set about writing a tool to relieve me of this burden.
A couple of hours later and I have an initial version of Baseliner ready to roll. It is currently based on jQuery (for personal efficiency, but there is no reason why it can’t be rewritten in unadorned JavaScript) and PNGlib to dynamically create the background images. I’ll stick the source on GitHub soon, but in the meantime, here’s a fifty five second preview of it in action: