Skype

: After a confusing acquisition by eBay in 2005, it was eventually sold to Microsoft in 2011 for $8.5 billion .

Skype's journey from a revolutionary peer-to-peer (P2P) service to its final shutdown is often analyzed as a classic case of missed opportunities. : After a confusing acquisition by eBay in

: Users were given until January 2026 to export or delete their data through the Skype Export Portal . : After a confusing acquisition by eBay in