A tweetdoc is a document that brings together all the tweets from a particular event or search term.
A tweetdoc allows you to keep a record of an event through twitter.
A tweetdoc is created by entering the appropriate hashtag or search term that you'd like to document.
You can optionally setup date and time ranges, tweet limits and company logos.
The result is a PDF file you can use to keep a record of any twitter-based conversation relevant to you.
Via Robin Good, Beth Kanter, Jeff Hurt