According to a Adweek article, Google is expected to secure 25 percent market share by the end of this year.
"According to eMarketer, Google will see its ad revenue soar to more than $4 billion by the end of the year — a number that matches the record ad spending pulled in by the entire industry during the most recent second quarter, and roughly a quarter of the $16 billion predicted for Internet advertising by eMarketer for 2006 overall.
Google's growth trajectory continues to be mind-boggling, based on eMarketer estimates. In 2005, it and Yahoo each pulled in roughly $2.4 billion in ad revenue. But this year, Google is leaving its top rival in the dust, as revenue is expected to surge by nearly 65 percent versus 17.5 percent growth predicted for Yahoo."
Google announced the financial results for third quarter last week.