Get yourself to participate in few forums, but before you start post some comment or open a thread in these forum, get yourself a signiture first, normally in a member control panel there will be a column where you can write down your own signature. Add you blog or blogs name in your signature so that it will appears in all your forum post or thread.
Give a good comment or create an interesting thread to lead people to find out more what's is that thread is all about, they will read your post, normally they keen to know who are you and guess how they can go to your blog? Your signature will play a main role here.
More visitors will gave more chances of your Google Adsense ads get click, more click more money.
So besides create post, dont forget to promote..