Google has developed a new tool called Google Trends that allows a user to analyze general search trends on Google over time. I was looking for a way to apply this tool to O Gauge railroading and came up with the following charts generated using Google Trends. The first chart compares the search volume for the terms "Lionel Trains" and "MTH Trains" over a period of just over 2 years.
The results are interesting but probably not surprising. The volume of searches for the term Lionel Trains (blue line) is much higher than the term MTH Trains (red line). The chart also shows that peak volume of searches for both terms occurs in the latter part of the 4th quarter, around the Christmas holiday season, the time of year when model
railroading is most popular.
The next chart compares search volume for "Model Trains" and "Hobby Shops".
Here you can see that the search volume for the term "hobby shops" (red line) is somewhat consistent throughout the year with a bit of an increase around the Christmas holiday season. On the other hand, the search volume for the term "Model Trains" (blue line) shows a significant increase in volume around the holiday season.
Since Google Trends is part of Google Labs it is considered a "work in progress". As such it only shows broad search patterns for general search terms. Analysis of search volumes for very specific low volume terms such as "Lionel Acela" will not generate results. Nonetheless, it's still interesting to experiment so give it a try with some of your own ideas.