Late last week I noticed Google was not bringing back eBay items on the first page of search results for some of my searches. I did some testing and am publishing my results in the AuctionBytes Newsflash newsletter on Thursday.
What I liked about this project was the transparency - anyone can go to Google and conduct the same searches and can expand on what I did. They can also test to see how their listings perform, and see exactly which websites are coming up in searches for various keywords.
Sellers with eBay Stores can check their traffic reports to monitor referrals, and see if there are swings in traffic coming from various sources. If anyone can plot the changes over time, please share what you're seeing.
I recommend sellers with their own websites be sure and optimize them for Google Base. As Google serves up listings through its Google Product Search feature, it may be deemphasizing marketplace listings. And if I learn anything more from Google, I'll post an update.
Here's the link to the Newsflash
article, eBay Loses Mojo on Google Search. Update 9/25/08: In the accompanying article, I mentioned a reader was going to share her eBay Store traffic data. This chart shows her September 2007 and September 2008 Search Engine referrals. One thing to note - she doubled her inventory and added variety in 2008.