Twitter partner DataSift is now offering companies access to two years of tweets, making available a vast amount of market-research information. Through its new program Historics , the United Kingdom -based Datasift is providing businesses with the ability to search and analyze Twitter feeds from 2010 and 2011. Before the development of the new program, only the previous 30 days of tweets were available for companies to search. DataSift is compiling an enormous volume of messages transmitted through Twitter, collecting about 250 million tweets every 24 hours. DataSift claims that it has a waiting of 1,000 companies wanting to subscribe to the service, which will cost a minimum of $1,000 a month.