Today really has flown, and now we're at the fourth masterclass.

I'm currently sat down with the guys from Twitter - well, me and the blue bands are. 

"Tweets are all about moments," said the Twitter guys.

And they really are...

Prestigious moments - including personal ones - broadcasted in the form of a Tweet on Twitter, can easily turn into a global-scale conversation. 

But most imortantly, it's about the expressive values.

Agencies and advertisers can easily capitalise on this when it comes to promoting their products and services. 

But tweets need to be relevant and timely. 

You see, it's all about suiting the target audience - nothing else.