Alphabet reported 23% year-on-year growth in revenues at constant currency to 39.3 billion US dollars for the fourth quarter of 2018, boosted by "ongoing strength in mobile search with important contributions from YouTube, cloud and desktop search."
"YouTube music and YouTube Premium are now available in nearly 30 countries up from five countries at the start of 2018," said Sundar Pichai, Alphabet CEO. "Last month, YouTube TV announced that it is expanded nationwide to cover 98% of U.S households with the rest to follow shortly. YouTube continues to invest in its thriving community of creators and build great features for its nearly 2 billion monthly log in users....The number of YouTube channels with more than 1 million subscribers nearly doubled in the last year, and the number of creators earning five or six figures grew by more than 40% year-over-year." Source: Alphabet statements