[[http://bloglines.com/ | Bloglines]] calls itself “the most comprehensive, integrated service for searching, subscribing, publishing and sharing news feeds, blogs, and rich Web content. ” However, its not a non-profit organization. They _do_ have a business plan. AFAIK, they plan to use data mining on the content of blogs they crawl, and then use that to display relevant ads to their subscribers, much in the manner of [[http://google.com/ | Google's]] [[http://adwords.google.com/ | Adwords]].
And so you might write an innocuos post about say [[http://www.hbo.com/city/ | Sex and the City]] and a subscriber might end up seeing an ad for a porn site next to your post! There are some [[http://trademark.blog.us/blog/2005/01/20.html#a1536 | interesting]] [[http://adam.rosi-kessel.org/weblog/this_weblog/the_perils_of_syndication.html | articles]] out there talking about the issues that can arise if you don’t pay attention to how your blog’s content is licensed.
Be aware! Protect your blog with an appropriate license so that services like Bloglines don’t abuse your content to make money.