I’ve been crunching the numbers since this post. In terms of Google AdSense revenues, February 2009 was my worst month since May 2005. I’m now making about half as much as I did two years ago.

My average daily income from AdSense declined while I worked for Health Canada full-time beginning in the summer of 2007, stabilized a bit when I went part-time in January 2008, and rebounded during the summer of 2008. Since last fall, it’s absolutely plummeted — a function not so much of my posting frequency, I think, but of the recession’s impact on the online advertising market.

Looks like I’m going to have to watch my pennies a little more closely from here on in, to make sure I stay out of debt. That, or I’m going to have to take on another contract sooner rather than later.

What I can do to improve my sites’ revenues is something I’m still working on.