Marketing is like 70% of the challenge for creative projects. If you want to be noticed in a crowded internet world like this, you gotta be at least a little louder.
Lots of great suggestions here already:
- make a facebook page
- invite your friends
- create a dev blog
- make the demo (or the whole game if it's free) available on as many sites as you can (rpgmaker.net is a good place to start)
- put a banner image and a link to your game's post in your signature, etc etc.
I also recommend learning some basic HTML... not full on coding level mind you, but just some basic tags so you can add images, bold text, make lists, all that kinda stuff.
Learning how to market a game (or any creative project, really) is another project in and of itself, but trust me when I say those skills will serve you VERY well in life.