Get a free estimate (self-serve) of the size and cost of any slice out of the full history of Twitter. This Gnip-enabled tool lets you test out queries to see approximately how many tweets you get for a particular historical rule. We invite you to test it out and share your feedback about how it works.
The data pricing is simple: $20/day data is collected and $300/million tweets. To submit your free estimate requests, visit: http://sifter.texifter.com.