I doubt ads is the main source of revenue. They do sell DIDs, VOIP calls to landline phones and mobiles (with insane rates) so ads (only in few countries) doesn&#x27;t account for much.<p>M$ bought lots of companies before, that eventually came to EOL even though they were doing pretty well before M$ bought them, it&#x27;s not particularly about the skype (even though we see it gets worse over the time).