YouTube announced a renaming of few modules on the home page, watch page, and on the search results page:

• Spotlight Videos are videos that YouTube are entertaining or educational for the masses, so they highlight them.
• Promoted Videos, originally called as "Sponsored Videos," are the paid video ads - like paid search but for YouTube and with videos.
• Featured Videos have gained popularity among YouTube's users and therefore get prominent attention on the largest online video site in the world.