And I've been so busy that I still haven't done anything to promote it, BUT...I just checked and for the second month in a row, my adsense was $10 HIGHER than it was for the previous several months when it was a PR 3.
So my page rank is lower but I'm earning more!
I finally believe all those people who told me that Page Rank doesn't mean that much. Although I would like my pagerank back, mind you.
This is really a testament to the power of article marketing - the only thing that I did to promote this site was write dozens of articles linking to it, and then I filled up the site with dozens of short posts of original content, which helps me in organic search.