Some in-depth analysis on how AdSense may or may not be profitable or rewarding. [here and here]
Now I have AdSense ads on my site, mainly because they are unobtrusive, and I need to finance replacements for my creaky hardware somehow. Although, it looks like that is not going to happen before the 256-bit PentiumX is released in 2030.
Oh well, enjoy.
Hugh, of course, nails my whining to the wall. [here]