It's a good article, worth referencing: http://www.technologyreview.com/web/23968/page1/
What's more, people are increasingly likely to discuss and interact with > content away from the site where it was originally posted. Grigorik studied > 1,000 of the feeds his company has monitored for the past three years and > found that *about 60 percent of the interactions PostRank recorded > happened on sites other than where the content was originally posted*. "As > a publisher or blogger, I want to see these conversations," he says. (emphasis mine). There's also a good clear description of how the protocol works end-to-end: > For the Salmon protocol to work properly, it would need to be adopted by > both publishers of content and services that might subscribe to or discuss > that content. When a post appears, the publisher uses pubsubhubbub to notify > the subscribers that it's present. Then, if a user makes a comment about the > post on another site, the Salmon protocol sends this information back to the > publisher. The publisher can in turn pass this comment downstream to all the > other subscribers, keeping the conversation unified wherever it occurs. -- John Panzer / Google [email protected] / abstractioneer.org / @jpanzer
