This Top 20 list below ranks Tumblr sponsored posts (desktop and mobile) and Radar adsbased on stats such as reblogs and likes (Tumblr uses “notes,” which can be either of the two) for the promos’ first 24 hours on the site. The list below also often refers to social shares the ads have accrued over the course of the year to show how some promos proved to have a long tail.
