Twitter Hits 50 Million Tweets Per Day and GROWING.
mashable.com
mashable.com
After, there's XMPP.
The number is very low compared with other communication mediums - IRC, IM, SMS, Email, facebook. Clearly they've grown well, but they have a long way to go yet.
The other point is that a large(ish) proportion of twitter seems to be bots and automated tweeting. It's hard to guess how much though.
>> "These numbers are definitely noteworthy and provide evidence against the perception that Twitter is not growing"
It doesn't provide any insight into what is growing though. Are people genuinely using twitter more, or are bots using it more, spammers, PR etc
Yeah call me crazy, but I expect there's a large amount of spam, bots, auto reposters, etc included in there.
It's hardly a trivial thing to identify and remove spam. Especially where your data is limited to 140 characters.
The other question would be are retweets included in the total.
Except strictly speaking executing a search is also producing content, of course - but only Google knows it.
But
2,500,000,000 text messages are sent each day in the USA through wireless networks when measured in early 2009.
Source:
http://www.textmessageblog.mobi/2009/02/19/text-message-stat...
http://www.freetext.com/blogs/ringtones/over-one-trillion-te...
And 25 million tweets sent via text message is probably a high estimate.
Only if you assume everyone has zero followers (who receive tweets via SMS).