Experimentation


  • Intro to Search: Measurement

    Welcome to the third part of our mini-series “Intro to Search.” In my previous posts, I’ve discussed the characteristics of great search results and what a search engine looks like […]

  • Data for nothing and bytes for free

    WordPress.com is a freemium service, meaning that our awesome blogging platform is provided for free to everyone, and we make money by selling upgrades. We process thousands of user purchases […]