[kazinator]

Which yellow pages where? Yellow pages isn't a specific company; it's a kind of floating trademark that exists in different ways in different countries and regions. My comment was specifically about yellowpages.ca that I have here in Canada.

> Why not skip the cruft and go right to the original source?

That depends on whether the compiling that you're skipping provides value. Why skip the gas station cruft and refine your own crude oil to make gasoline? Hey, no road tax!

[gohrt]

Aside, that's not true, in many jurisdictions. US tax authorities chase down and collect money from biodiesel users who don't pay the fueltax.

[kazinator]

How do they do that? It seems you would have to ask all vehicle owners to submit their fuel receipts and odometer readings.