Hi HNers,<p>I've built a news aggregator based upon pubsubhubbub, running on appengine. It's an experiment project started far away in 08', but I gave it up as I cannot see any value a simple feed aggregator could provide, and it was ugly, technically.<p>When later Google added new apis, like cron/queue tasks, and there is new pubsubhubbub. Then I thought: let me scratch it, and build around these new stuff. And here I am, it's technically superior now, at least.<p>I still see no much value here, but i'll try this time. I'm gonna aggregate startup blogs, so <i></i>please suggest some<i></i>. Your time appreciated.<p>It will be released before FIFA world cup. And the source will be open later, if you're interested.<p>Thanks!