What is the best way to do the following? I want to scrape twitter users who have retweeted or favorited a particular photo on twitter. Then I want to use a tool to be able to find out what countries each of those twitter users are from. So I'de have a list of retweeted/favorited users and from that extract lets say those who live in the U.S onto a seperate list of twitter user IDs. Is there any software you would recommend?