The log files from your web site traffic can be an important aspect of your SEO research. You can find an amazing amount of information embedded within the logs. For example, today I noticed seven search terms that are doing very well in Yahoo that I was unaware of. These are terms I had not thought of and had not optimized for, but people are flowing into the site using those terms. In addition, Yahoo is outranking Google in terms of traffic for the site I am talking about. Make time to check your log files at least once a week to see what information pops up that can help you determine your next SEO strategy.