Hi, We have been harvesting the sample feed (spritzer and gardenhose) for over two years now as part of an academic sentiment analysis project. As the volume of tweets has increased, we've had our share of hiccups retrieving and storing them. In particular, there is a 6 month period in 2009 in which we have inconsistent tweet volume, about 4 weeks of which we don't have any tweets. We are getting close to publication of an initial paper, but would like to fill in the gaps.
The API does not seem to be set up to allow the retrieval of historical tweets. We are hoping that either Twitter or somebody in the data mining community could help us with these missing data. Best, Kameron Decker Harris University of Vermont -- Twitter developer documentation and resources: http://dev.twitter.com/doc API updates via Twitter: http://twitter.com/twitterapi Issues/Enhancements Tracker: http://code.google.com/p/twitter-api/issues/list Change your membership to this group: http://groups.google.com/group/twitter-development-talk?hl=en