GP is basically saying twitter has accumulated a vast wealth of social data that is immensely valuable to the research community.
Journalists certainly are. Getting quotes was hard work. Now it consists of trawling Twitter. Not sure if this has been a boon or bane for journalism, however.
In the short term, anyway. The substitution of Twitter-trawling for actual journalism and research is doing immense damage in the long run.
twitter simply cannot reach people who don't go looking for it, it would need to basically just randomly show up on your instant messenger unbidden, it has no universal connector like radio and tv which are everywhere.
then the last issue is there are too many voices on twitter so only those connected get out and assume importance. importance to only users of the medium
I'm not so sure. Hashtags are everwhere both physical and digital, companies want to to start tweeting about their event/product/etc. As for a direct connection, how often have you see a tweet embedded in a news article, or displayed on live TV?
Does that actually mean it's valuable? Just because something's one of a kind doesn't mean it's worth that much.