when you Draw- you put card into hand.
when you reveal from library - you put it on the table face up - so everyone can see.
When you done revealing as much as effect told you to do (until you find a land in this case), you then put those cards where effect tell you to put them (on the bottom of your library).
When you turn begins, and you need to draw a card as you normally do, and you don't have any to draw- you loose the game.
Ok I feel I may have over complicated the question a little.
In the case of the Charbelcher it says until I find a land; what if I search through the library and don't find a land?
Does the Charbelcher then deal damage equal to that many cards even though I didn't hit a land?
My understanding of this is some what limited but don't if I don't hit a land then surely I can't move on to the next step of what the card says and then I can't continue to resolve the card and then I'm stuck.
I found this opinion online, is it correct?
"If there are no more land cards in your library, you reveal all cards in your library, do damage equal to the count, and then put your library in any order you want."
If you don't reveal a land, it will deal damage based on how many cards are in your library.
You always do as much of an effect as possible, so if you don't find a land you reveal all of your library and then since you can't reveal any more, you continue with the effect, which is based on the number of nonland cards revealed. Regardless of whether you reveal a land or not, you did reveal some number of nonland cards, and that number is what determines the damage.
In order to not work if you didn't get any land, it would have to say "If you revealed a land card this way, Goblin Charbelcher deals damage...".