Cowboys do not appear on Yellow Pages and have not got a website!
Having your name, or your firm's name, mentioned in Yellow Pages, or having your own website on the internet is a matter of prestige. Remember that 'cowboys' do not hightlight themselves this way.
If you want to find out more about someone - then search the above. If they not listed then perhaps the alarm bells should start ringing - maybe.
Having said all this, have you noticed how Yellow Pages is getting smaller in size - type size included, which makes you think that your are a case for 'Spec Savers'? The reason is that more people are using the internet to search for what they want and costs are being cut. Besides, do you know it costs an arm and a leg to advertise in Yellow Pages?
Remember, constructing your own website is simple enough - and if you don't want to do it yourself we have the answer.