SaneBox is a simple service that analyzes your past behavior (which emails you open, which you respond to, how quickly, how often, etc) and determines importance of incoming emails without ever looking at the content (only the headers). It moves unimportant emails out of the Inbox into a separate folder called SaneLater and summarizes them in a digest. It works anywhere you check your email (since it's just an email folder).
Some of the SaneBox features you will love:
You will get $15 credit which you can use to purchase subscription on top of your 14 day free trial.