Paper.li may have been creeping into your life with its "custom newspapers" for Twitter. The service works by aggregating content based on a set of parameters determined by you. It can cull content based on keywords, usernames and hashtags to create a daily hub of the content that most interests you.
It doesn't matter if you're friends with an individual; if that person's content is open to the web, Paper.li can scrape it. If the content is sealed behind Facebook privacy settings, it will be unavailable to your daily aggregation.
It could be due to the "in testing" label on the feature, but users are currently unable to combine content from Twitter and Facebook searches into one unified stream of content. Papers from each service exist independent of one another, so users of the service will have to run two separate searches to create two independent newspapers.
Regardless, the addition of Facebook to the Paper.li repertoire does mark a shred of promise. It already stands as a compelling addition to the content aggregation capabilities of the service. If the other oddities are worked out, it's feasible to believe that this could be a boon to those looking to easily monitor the scope of the social graph.
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