Hacker News Reader

Or if you like Google's service, as I do, but care about your privacy, as I do, you can use Scroogle: http://www.scroogle.org/

It's a secure (SSL), anonymous (no cookies), ad-free Google interface. You can make it the default in your search bar in any browser either by hand or through an extension. Note that the results are much more minimal (no links to similar articles, cached versions, etc.), which you may prefer, as I do, or not.

Don't Yahoo and DDG use Bing for their search results? If so, Bing is the only alternative on your list.

Hm, looks like Alta-Vista is still around...

The results come via a rebranded Yahoo! search, which itself consists of rebranded Bing results.

I believe DDG uses a variety of sources for results, including but not limited to Bing.

I'd add https://ixquick.com to the list.

Also, using a search engine directly is not the same thing as using it through one of these intermediaries (especially while logged in).

or just use Facebook.