Broadway - 7:05 pm on Jan 24, 2006 (gmt 0)  Some threads here
talk about poor YPN targeting but doesn't the unending presence
of RON ads served by YPN suggest that they simply have no other
inventory to offer?  As I mentioned above, I gave YPN a money
keyword page. In my industry this is THE keyword that makes the
most money. (Historically) on my Adsense pages I've had strip
out every reference to this keyword (such as across site
linking) on pages covering other topics, because even a minor
mention of this keyword in text would cause Adsense just to show
ads for it, not ads "on target" for the real content of the
page.  So on the page I have given to YPN, out of a large
skyscraper ad block only a single ad is directly on target for
this keyword, the other ads are not.  This to me means that they
simply have no advertisers for the money keyword (which is
beyond comprehension to me). Because if they did we'd both be
making money.  Thread source:
http://www.webmasterworld.com/yahoo_publisher_network/383.htm
Bro