[lambda]

Let's see. There was Apple's iTools, .mac, MobileMe, and now iCloud service (sort of one big evolving service, with some bits chopped off or replaced at various points in time), which has gone from free to paid to freemium.

There's Google Apps for your Domain, which killed off its free service in favor of the $5/user per month service.

Ning shut down their free service and switched to a paid only model.

DynDNS also shut down their free service, only offering paid.

How many more examples do you need?

[patmcc]

I can't speak to the rest, but I still have free Google Apps for my personal domain. They're no longer offering it for new customers, but those who signed up when it was free still have it.

[dragonwriter]

I recall those being free. I don't remember any of them being marketed as "Free forever". If you have even one example that you can document as being falsely advertised as "Free forever"...