When you think about virtual slot machines, the first thing that probably comes to mind is the slots themselves. After all, the very first virtual slot machine games that people ever played were simply slots that had images on them of balls bouncing off of a reel. Though these early models of online casino slots are relatively primitive by today's standards, they are still very enjoyable games.  Many of today's newer online casino games use slot machines that are very similar to what you would find in a real casino, if not better. Of course, there are still some pretty...