The number of pages of listings in the Yellow Pages in 2010 was 1246; in 2011 there were 1138; in 2012 there were 1009 and for the just issued 2013 edition there are 852.
If anything I believe the number of businesses in the Winnipeg area has increased over this period, keeping up with the demand of a growing population.
I wonder why in the age of Google and many other online search tools, local businesses continue to waste millions of ad dollars on a medium that is as weak as a cash bar at a wedding!