Find the word definition

Wikipedia
Memetracker

A memetracker is a tool for studying the migration of memes across a group of people. The term is typically used to describe websites that either:

  1. analyze blog posts to determine what web pages are being discussed or cited most often on the World Wide Web, or
  2. allow users to vote for links to web pages that they find of interest.

Sites in the latter group are often referred to as social media sites.