Squeezing a Keyword

I hit a jackpot on a keyword that is, as of now, the biggest earner in my adsense account. With jackpot, I don't mean hundreds of dollars per day. It actually gives me only a few dollars a day, but among my sites, it's the one that brings me the most income.

So, in a bid to make the most out of it, I got myself another domain related to this particular keyword and is now attempting to squeeze whatever I can get out of it. I am now in the process of bringing this new site with the same keyword to the first page of the google serp, SEO-wise.

If, say, I get to be 2nd for that keyword with site number 1, and 3rd (or 4th) for the same keyword with site number 2, would I increase my earnings for that keyword alone? How much would I get more compared to what I'm getting now?

This is what I'll get to know in around 3 months from now. If things go as planned, I should be able to hit #5 (or better, #3) on the serp in 3 months.

I'll make an update on this soon.

Recent Posts:
Old Singer Machines
Smallville Theme Song: Somebody Save Me
Bugs Bunny Poster