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No need to "F5" every seconds for traiders (this features alredy exist)
http://en.wikipedia.org/wiki/Varnish_cache
Could you explain how XMPP fits into this "realtime" scene? The best example of here is the Twitter "firehose" which they have since restricted.
That also reminds me: I believe it was the case that Twitter provides Friendfeed access to this firehose, allowing near-instantanious transfer of Twitter traffic to FF. While Clients connecting to FF may be using long poling (in the case of their "realtime" feed), I believe the way FF sucks up Twitters XMPP stream is techinically different to "polling" ?
I recorded another video to explain.
Zac
I was going to note that these techniques were in use in the late 90's by desktop clients (such as Instant Messengers) and browser plugins (such as streaming media players). At the time the technique was called HTTP tunneling. (I wrote a bit about that here: http://www.ultrasaurus.com/sarahblog/archives/2... )
Nice presentation of the technique and interesting seesmic-style discussion -- sorry I couldn't participate live.
Thanks for hosting this discussion. It is cool to see how much realtime and push communication is being adopted by web apps. 2009 is gonna be a great year!
Sarah