The Twitter Grade measures the relative power of a Twitter user. It is calculated as a percentile score. A grade of 36 means that the user scores higher than 36 percent of the other user profiles that have been graded. How is it calculated?
Grade Your Website
Website Grader is a free seo tool that measures the marketing effectiveness of a website. It provides a score that incorporates things like website traffic, SEO, social popularity and other technical factors. It also provides some basic advice on how the website can be improved from a marketing perspective.