How do you decide whether a technological development is significant or not? Here's a simple rule: if the mainstream media — as represented by, say, Daily Mail columnists — are baffled by, or contemptuous of, it then it's probably worth paying attention to.
Search for your site URL and the results displayed will un-shorten all shortened links in tweets that link to your site. It does not matter what URL shortening service someone uses when tweeting about your site, BackTweets will resolve all shortened URL’s to display the ones pointing to your site.