...was given by Penelope Trunk of Brazen Careerist.
From my point of view it was a bit chaotic, but then I pretty much
only use Twitter to update my Facebook status - so maybe a good bit
was over my head.
I got a clue about "@", which I'd seen before but didn't understand.
Also a pointer to a couple of services, such as Buzzom, not that I'm
likely to use it.
Best advice: don't be boring. But I already knew that.