Nielsen//NetRatings announced that the number of sponsored link advertising impressions on the Google and Yahoo! ad platforms grew 16%, from 55.4 bln to 64.3 bln, between August 2005 and January 2006. This accounts for sponsored link impressions not only on the Google and Yahoo! Web sites, but also in their respective search and contextual advertising networks. Although Google had more sponsored link impressions in January, Yahoo! is gaining ground. During the last 6 months, Yahoo's sponsored links have grown 21% to 23.2 bln, while Google's have grown 14% to 41.1 bln.
Sponsored link impressions, bln.