I have seen keywords of articles being underscored (or double underscored). When the mouse cursor hovers over them, an Ad pops up that one can click if one wishes.
Presumably PPC fees are earned when visitors clicks on such pop up ads.
See, for example:
http://www.investopedia.com/terms/n/nms.asp
where the keywords "trading" and "otc stocks" are underscored.
Anyone has any experience with such Ads? How do they compare with normal PPC and AdSense Ads in terms of revenues and effectiveness?
How does one sign up for such programs?
Presumably PPC fees are earned when visitors clicks on such pop up ads.
See, for example:
http://www.investopedia.com/terms/n/nms.asp
where the keywords "trading" and "otc stocks" are underscored.
Anyone has any experience with such Ads? How do they compare with normal PPC and AdSense Ads in terms of revenues and effectiveness?
How does one sign up for such programs?












