Paid search ads continue to grow at a staggering pace according to Nielsen//NetRatings' AdRelevance unit with both Google and Yahoo reporting that they served significantly more sponsored search ads last month than they did in August. Google resorts a 14% increase, with their ads totally more than 41 billion listings. Yahoo served a little more than half that amount with a little over 23 billion ads. Yahoo's numbers represented a 21% increase though, showing significantly more growth than Google.

It's important to note that the number of ads shown is growing at a faster pace than search itself, making it clear that the growth is due to increased interest from advertisers rather than increased search inventory.

eBay, the online auction house continues to be the largest single ad purchaser, racking up near 984 listings on Google last month. (eBay accounts for about 2% of all advertising on Google.) eBay also purchases about 2% of the ads running on Yahoo, tallying up 537 million ads on that network. Shopping.com drives the second largest number of listings on each engine.






About the Author

Jennifer Laycock is the Editor of Search Engine Guide, an educational web site aimed at translating the search marketing world into something that small business owners can understand. Jennifer specializes in common sense search engine marketing, viral marketing and customer outreach via social media and blogs. A former search marketing consultant and in-house trainer, Jennifer’s clients have included companies like Verizon, American Greetings and Highlights for Children. Her primary clients now are a little girl named Elnora and a little boy named Emmitt.

Jennifer Laycock is the Editor of Search Engine Guide, an educational web site aimed at translating the search marketing world into something that small business owners can understand. Jennifer specializes in common sense search engine marketing, viral marketing and customer outreach via social media and blogs. A former search marketing consultant and in-house trainer, Jennifer’s clients have included companies like Verizon, American Greetings and Highlights for Children. Her primary clients now are a little girl named Elnora and a little boy named Emmitt.