When people think of search engines, Google tends to pop into their minds. However, there are a large number of search engines out there. Google’s bigger competitors seem to be coming from large businesses like Microsoft’s Bing.com, but smaller search engines have a place as well.
Most smaller search engines are very niche oriented. ChaCha is aimed specifically at answering questions, Trackle emails you specific news as it finds it, Kosmix compiles informative sites from around the web, and many other engines perform many other types of searches. While these can be useful in some cases, however, Google is still the broadest of the search engines, offering better results for more searches.
This is why it is so important to optimize for Google rather than a niche search engine that will only be useful for certain types of searches.
If you would like to know more about Google and search engine optimization, you can contact The Search Engine Guys at (512) 394-7234.