This 37-page document by a Vatican insider tells in detail what happens once the doors are locked to the Sistine Chapel. And since we are in the midst of this process, I thought some may find it interesting.
Start on page 22, when the chapter on voting starts, to get an idea of what the cardinals are doing during these days as we await white smoke. And by the end of it, you'll know a reviser from a scrutineer. (Thanks @roccopalmo for the link.) Read it here.