Here is a nascent useful wiki.  

As far as I can tell no one is vetting this to assess how suited all of these readings actually are for intro classes. (Color me dubious about some of them.) And for my part, I wish it were a broader database that included canon-stretching readings of ALL sorts and not just readings by women. All the same it seems to me to be a useful initiative, and it may grow into an even more useful one.

UPDATE: Here is another, similar database coming out of Australia. This one has a nicer interface and some vetting. It's for readings by women for undergrads, not just intro classes. Thanks to Patrick McGivern for the tip!