by Charlie Yeoh, 9/30/2006
Each search engine uses a formula to compute website rankings. When a search engine changes this formula in any way, it may raise or lower your ranking. Some search engines use a number of different formulas, rotating them so that a formula doesn't become overused or outdated. Depending on which formula is being applied, your search engine position may suddenly drop or rise in rank significantly. Therefore, you must check your positions frequently in order to catch when a search engine changes formulas and what effect it has on your positions.
You must also deal with your competition - a crucial factor you must always be vigilant about. Your competitor's position may suddenly rise, automatically lowering your position. Or their position may drop, pushing your position higher. Each month, expect position changes due to the continual changes that are occurring in your competitor's position, and be prepared to adjust your marketing strategy to compensate for decreased rankings. Monitoring these fluctuations will also give you vital information about how to improve your website to increase your position in search results.
Of course, you must discern what the most popular search engines are in order for your monitoring efforts to be effective. Right now, there are ten popular search engines that direct most of Internet traffic to your sites. The challenge you face is that these top ten may change from month to month.
This means that your must not only monitor your search engine positions, but you must also keep track of the ranking popularity of the search engines you are monitoring. Find out which search engines people use most frequently every month and be sure to live in the present! People are fickle about their favorite search engines, and it takes constant vigilance to follow their dalliances. The search engines they loved when you first launched your campaign may be old news in the next few months. You must adjust your list of engines according to the whims of the Internet users. Check out http://www.searchenginewatch.com/reports/netratings.html for a current list of website favorites.
Another factor to monitor carefully is a sudden drop of your positions in all search engines. This is not the same as monthly fluctuations - this is a neon red warning sign! It could mean a number of different things.