What apps/services tout privacy as a feature?

[jstayton]

For example, SpiderOak for backups, DuckDuckGo for search, Burner for phone communication, etc.

I ask because I'm curious whether privacy as a feature is important to enough people to sustain a business — even one as small as a couple of people.

Please leave out open source / host-it-yourself options, as I'm looking at it from a business angle.

[teaneedz]

Wickr