For example, if you're hankering for some undead smashing, you can look up adventures that include undead, or if you remember that there were two seperate adventures that gave players the Sword of Kas, you could look up the Sword of Kas and find out what those adventures were, and maybe find a third or fourth you didn't know about.
I'm posting a link to the website and the video he made talking about it below, but I've made these threads (yes there will be many of them across the boards) because he needs people to actually include these adventures in the database. And, here on Enworld, I know there are a lot of people who have a lot of adventures new, old, famous and obscure, who might find the time to help him build out this database.
Thank you for your time and help.
[video=youtube;D3OllWSRhuI]