what is ogg?

i've had soo many people tell me that ogg is better than mp3, how? i know ogg is opensource, but as long as the bit rate's the same does it really matter in terms of quality? or does the differnce matter in size ?

as much as i hate to say it, "convenience is king."  one thing that i believe could help ogg is a true marketing strategy (think Firefox and friends).  talk outside of technical circles and no one knows or gives a shit about ogg.  artists could do wonders by allowing them to FREEly encode their songs along with bringing greater usership from their fans. 

i also believe that if ppl started saturating p2p networks with their ogg files that a greater awareness would surface, but who really has the original context (ie. cds, vinyl, wav, etc.) to encode and put out?  there could be a movement, but movements aren't "convenient" in peoples' minds.