Do filenames and directory structure matter?
Many say that filenames do not directly matter, I have proven in the past however that they are part of the ranking algorithm in many major search engines. For optimal performance I suggest that filenames should be no longer than 15-20 characters in length and should contain the keywords for the content of the page, with words being delimited with dashes “-“. Directory structure too is important, with directory names including at least one target keyword and the directory structure should be kept as close to the root as possible i.e. www.site.com/page.htm is much better than www.site.com/folder/folder2/page.htm.
