Chris' blog posts are generally short, crisp but have descriptive titles and tags necessary for increasing the site's Google juice. The same holds true for his image posts. The images have good text descriptions, meta tags and alt information required to rank high in Google and other image search engines.
Coming to Adsense, let's take a look at some Adsense implementations from his blog that are smart, absolutely legal and should be converting quite well for him:
1. Adsense Referrals - Noticed something special in the following screen capture ? The Adsense for Referrals link is actually the Javascript code provided by Adsense but it blends so well with rest of the sentence text in the blog post both in flow and meaning.

2. Adsense for Content - Chris gets a majority of visitors via search engines and he knows how to convert that traffic into Adsense dollars quite well. Take a look at the following implementation:
Reader Comments
I wish I wrote articles this good. And I am very impressed that you figured out my secret with the AdSense referrals! Bravo! And thanks for the links, the love, and the appreciation!
Written on 24/4/07 5:54 PM
Chris did, you figured out and I learnt.
But I don't know anything about this complex thing. Let me apply if I can.
thanks
Written on 25/4/07 2:36 AM
This is really a great way of promoting your referrals which will surely earn you heapz of money. Cool Chris
Written on 25/4/07 11:27 AM
The adsense script precludes that kind of blending by default. It's something I considered circumventing somehow for my own sites, but I suspect that Google will see it as a violation of it's T&Cs or if it doesn't already will tighten them up should this text blending technique become too popular (in the same way that it tightened up the images next to ads issue)
db
Written on 26/4/07 12:47 AM