this comment, analysing the four combinations of opt-{in,out}-to-be-scraped x opt-{in,out}-to-get-paid is well worth reading: http://blog.readability.com/2012/

this comment, analysing the four combinations of opt-{in,out}-to-be-scraped x opt-{in,out}-to-get-paid is well worth reading: http://blog.readability.com/2012/06/announcement/#comment-3419 http://blog.readability.com/2012/06/announcement/#comment-34...