Create billboard-like explosions

Hello guys, I am trying to re-create this way of making explosions, so I can have some proper background to my explosions and add effects into them instead of just having effects (that ultimately dont look so good all by themselves).

The graphical side of game development is not my strong suit (I am good at the programming side tho), but I know my way around 2D image applications. That said, how would one go about creating an effect like this : http://www.youtube.com/watch?v=RU1bG5W2kVw ? I beleave it is made with billboarding, but my attempts at it look horrible, probably because I am doing it wrong and I cant find any info about that tecnique.

The Idea is to make a V (cone) shaped ground explosion, where dirt and shrapnel will fly upwards very violently (this “violently” part is where I always fail, I beleave there is only so much you can do with particle emitters, violent upwards stuff never seems to work out right). In the examples I have seen, they look like a billboard that scales in size, but I never get a proper result. Any pointers would be great.

While we are at it, if you know a good resource explanations on how some visual effects are made it would be very cool. I am mostly interested in visual effects/illusions, even if they dont provide step by step tutorials (I prefer proper explanations instead of step by step tutorials to be honest).

Thanks in advance for any relevant info
Joao

Can I get this post moved to a proper location? Thanks