[1] pubsubhubbub - Project Hosting on Google Code ( 版) <http://code.google.com/p/pubsubhubbub/>
[2] Draft: PubSubHubbub Core 0.3 -- Working Draft ( ( 版)) <http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.3.html>
[3] pubsubhubbub - Project Hosting on Google Code ( ( 版)) <http://code.google.com/p/pubsubhubbub/>
[4] PubSubHubbub - IndieWebCamp ( ( 版)) <http://indiewebcamp.com/PubSubHubbub>
[5] Real-time Photo Updates • Instagram Developer Documentation ( 版) <https://instagram.com/developer/realtime/>
[6] Draft: PubSubHubbub Core 0.4 -- Working Draft ( 版) <https://pubsubhubbub.googlecode.com/git/pubsubhubbub-core-0.4.html>
[7] PubSubHubbub Community Group ( 版) <https://www.w3.org/community/pubsub/>
[8] public-pubsub@w3.org Mail Archives ( 版) <https://lists.w3.org/Archives/Public/public-pubsub/>
[9] pubsubhubbub/PubSubHubbub ( 版) <https://github.com/pubsubhubbub/PubSubHubbub>
[10] PubSubHubbub Core 0.4 -- Working Draft ( 版) <http://pubsubhubbub.github.io/PubSubHubbub/>
[11] PubSubHubbub ( 版) <https://github.com/pubsubhubbub>
[12] Google Developers Blog: PubSubHubbub, Feeds, and the Feed API ( 版) <http://googledevelopers.blogspot.jp/2013/07/pubsubhubbub-feeds-and-feed-api.html>
[13] Google Pubsubhubbub Hub ( 版) <https://pubsubhubbub.appspot.com/>
[14] PubSubHubbubでリアルタイムインデックスとかいう幻想 | Sorry for Team KILLing ( 版) <https://srytk.com/578.html>
[17] PubSubHubbubに対応すると、Googleが早くインデックスしてくれるかどうか実験 | OpenMemo () <http://labo.samuraistyle.org/blog/archives/887>
[18] PubSubHubbubを導入してどれくらいの効果があったのか () <http://memo.everyday.jp/archives/264>
[20] Discovery: Limit HTML rel=hub links to <link> elements in <head> only. · Issue #67 · w3c/websub () <https://github.com/w3c/websub/issues/67>
[21] register "hub" link relation with IANA · Issue #9 · w3c/websub () <https://github.com/w3c/websub/issues/9>