Recommendations have always been at the heart of the Spotify experience. Friends and family share their favorite music, podcasts, audiobooks, and more from Spotify millions of times each month. That’s because word of mouth is one of the most powerful ways for people to discover their next favorite track. Spotify users have told us they...
Zawinski’s law: Every program attempts to expand until it can read mail. Those programs which cannot expand are replaced by ones which can.
This is just the modern equivalent: Intra-site messaging.