Intwischa.com has gone live with a beta version of their Dungeon Magazine index, and Charlie, who created the index, has done a bang-up job.
The beta version is searchable, can be filtered by level and setting (so if you need a 5th level module for Greyhawk, you can find one), includes a blurb describing each adventure’s contents (very handy!) and even shows you the cover of each issue.
This index grew out of a post here on TT (Resurrecting the Dungeon Index?), and Charlie has run with the idea and produced a very cool resource for GMs. Not just GMs who run D&D, either — with a bit of tweaking, Dungeon adventures can be used for other RPGs, too.
The Intwischa.com forums are open for feedback — head on over and show your support!