A measure of both the number and the quality of inbound links. Most search engines take this factor into considering when ranking websites in SERP's. Market leap is an excellent website to use to check your website's link popularity.

Log files are generated and maintained by the server and contain all details of any file accesses. This includes data such as file accessed, date and time accessed, referring page, user agent, and more. Analyzing log files can be a powerful way to obtain information about visitors and their behavior on your website. Log files are also used to track search engine referrals, and are a good way to find keywords to target for search engine optimization.

Directory/PPC Engine hybrid.