Chirpstory, is a new and Twitter-focused curation tool, which offers a way to curate and "summarize" related tweets in the form of a continuous or thematic narrative story. You can gather and share collections of tweets around a specific topic, popular news items, events, or trends may see thousands of related tweets, retweets in a matter of hours. Each story is hosted on an easy-to-read, dedicated page hosted on Chirpstory.com or can be embedded.
Here's how it works: on the "Create story" page, just choose a headline and drag relevant tweets loaded in the left column and drop them to the right (or use Chirpstory Chrome web app). You can then add videos and pictures from the web, edit the story, and publish it- logging in with your Twitter account is enough.
All stories can be shared with others, tagged, commented on, kept private or saved in a "Storybook". Below is a screenshot of a tribute for the late Elizabeth Edwards:
More Info: Chirpstory