1) Shows you the original site instead of a context-less feed. Read the original and NewsBlur marks the stories you've read.
2) Filter stories you either like or dislike. A three-stop slider goes between dislike, neutral, and like (red, yellow, and green). Training is super-easy and all click-based (as opposed to you having to writing out what you like in a site, NewsBlur asks you, semi-Hunch-style, your opinions on facets of the site)."
Link to Original Source