The Archivist is a Windows application that helps you archive tweets for later data-mining and analysis. Start a search with The Archivist and get as many results as it can. Then, leave The Archivist running and it will poll Twitter for that search. The Archivist allows you to see a chart that shows tweets per day on a given search. You can toggle between the chart and the list of tweets by using the View Chart or View Tweets selection in the menu.