An anonymous reader writes "Google's advertising sales vice president, Tim Armstrong, said this week in an interview that 2005 was the turning point for online ads. Older businesses went from trying out the internet as an advertising venue to investing full-on." From the article: "'The experimenting and testing phase begun in the 1990s has ended. Corporate ad buyers are investing now,' he said. Jupiter Research estimates the U.S. online advertising market will grow 28 percent over last year, to $11.9 billion in 2005, moving to $13.6 billion in 2006 and $15.1 billion in 2007."