There are many sites on Twitter that offer additional services:
- hashtags.org
- tweetmeme.com
- repeets.com
- dailyrt.com
- backtweets.com
Everyone has something in common: they seem to get all the updates from Twitter. Otherwise, they could not offer such complex services with high quality results.
But how do they do it? Twitter has an XMPP (Firehose) channel, but not everyone is allowed to receive data from it.
Are there any approaches that you can recommend or which you think they use? The normal API is too limited, isn't it?
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