SEO and Related
SEO includes gathering, understanding, and acting on analytics data, demographic data, competitive analysis data, etc; researching current search engine trends, developments, and best practices; and analyzing the site to determine if it needs to be tweaked/adjusted or otherwise changed to best take advantage of search engine ranking algorithms and new developments and technologies introduced by search Web sites.
Google Analytics
Knowing who visits your site, when they do it, and how they do it is invaluable. Tracking trends in your traffic uncovers intelligence that you can act on, allowing you to adjust based on data, and know quickly whether your changes are working or not.
Competitive Analysis
How do you compare to your competition? Does your Web site get as much traffic? Does it rank as highly in search engine results? Are they doing something that works better than your current approach?