Comment by JohnStrange

Yandex is pretty good but I haven't found a use case for DDG yet. Whenever I set it for "privacy" reasons (not that I really believe them), I have to go back to Google to get reasonable results. I can confirm the memory loss, though, ego-surfing confirms it for me. Much of my older stuff is gone and all the top links for my name are related to my current work. (So in my case, it's kind of beneficial.)