Nielsen/NetRatings is reporting that demand for search advertising is growing faster than search engines can meet it. Wow. What a great time to be a Google or Yahoo. The reason is simple: What those analysts predicted during the boom years is coming true, though just a few years later than they predicted. We are surfing the Net not just to read emails or chat with friends. We are basically searching. Take a look at the chart below showing the growth in search sessions during last 12 months. I think this trend has many serious implications for advertisers and I have tried to address some of these in my article: Search engine advertising strategy: How to respond to new challenges?