I sat here for a whole day in September searching for all the sites with free listings and entering my partner's oven cleaning business on them.
All we got was a call from one of them really piling on the pressure to update to a paid listing, a few emails and near enough 20 calls for water coolers (I think Kelly Search provided the water cooler people with our number)!
We've never had an enquiry as a result of the listings.
I think I'm right in saying that if you search for the business name and area on Google, Google Local is the first one to come up and they get their info from Thomsons, so maybe registering with Thomsons will do the trick.
I don't know about you guys but whenever I need to find a number, I only ever use Yell or BT.
Ali