Interesting. Of I course, I'm not trying to discourage this at all. I really dig this stuff. Just writing my thoughts on another, complimentary approach. I guess this makes sense from the perspective of a hacker who wants to build a cool thing for his/her own use.
The questions of efficiency really come into play when you see Yahoo! spending $30 million for Summly. For that, you could hire 60 people to work for $50,000/yr for one year. I wonder how 60 happily-employed English majors might stack up to something produced by Summly et al.