When I remember I Twitter. I'm not very reliable or consistent in my posting (and I'm more likely to use it from the web than SMS that maybe cuts down the spontaneity (must get a cellphone plan with including texting).

Just like updating my Facebook status or changing my Messenger status I'm not really sure that it adds much to the communications with my friends (though I get enough complaints when I go quiet for a week that maybe it is).

I've finally found an explanation for maybe why it is worth updating these status messages - this exhaust data confirms that the network is alive and well and it just performs a comforting action. I even found out there is a term for this sort of small talk - Phatic communication.

So no, Twitter isn't just noise... it provides social reassurance, confirmation that the network is working and... an opportunity to learn random titbits.