Yesterday in class I mentioned Rich Rutter’s Font Matrix. I think at this point it would also be useful to share a small project of my own: Nice Web Type. Check NWT’s right column for lots of links about typesetting web text.
The meat of NWT is really just a one-page site that ties together activity in Flickr (the center column) and Ma.gnolia (the right column). You can also check the groups that power these two columns: Nice Web Type on Flickr, and Nice Web Type on Ma.gnolia. The left column of the site is a combination of tbrown.org and NWT twitter posts about the site and the project in general.