Sending a server message?

Currently got kick to work, working on a few other things, but what most interests me is sending a server message. Not sending a message as another player (although I'd also love any information about that as well!), but sending a message as the server or as a general message. Basically, I can't broadcast the kick message and want to replace it with my own.

I could give some information about some fun things you can do if anyone wants as well, not sure about kick though.

What's your Skype? I'm fine with helping getting this one done.