I'm actually surprised at the support
for the yellow pages.

Of course my blog post is my opinion, based on information gathered from various sources and my own personal experiences.
I never use the yellow pages, nor does anyone in my family. When the 'big book' was delivered in my neighborhood, 50% of them sat outside for weeks before my neighbors ended up trashing them. Even before I started my VA business, none of the legal offices that I worked in used them, even though we had a ton of them sitting around the office.
I started out by purchasing ad space on yellow pages.com, but found that my results were no different than with the simple free listing.
I suppose it may depend upon the services offered. Since mine are really technology specific, my website/blog, Twitter and other social media avenues have been how clients have found me.
Since computer access isn't guaranteed for everyone, the yellow pages still have a purpose, but I do believe it's no longer the perfect place to invest your advertising dollars. Of course, again, that's my opinion based on my own research and personal experience.