Hakia.com has sponsored the Search for Better Search website, which so far looks rather thin, though it does have some interested poll responses. Among them: 62% don’t trust search engines with their private information.
That should probably read something more like “I don’t want search engines to have my private information, but really, Google could steal my identity at any moment because I’ve already surrendered all my private information to AdSense.” Unfortunately, the poll’s sample size is rather small (298 respondents so far).
Hakia’s influence on the page seems to show through, as well. An older poll, with almost 700 respondents, asks, “What do you think a search engine should do?” The top two answers by quite a margin are “Understand my question the way a human does 38% (262 votes)” and “Bring highly relevant results with semantic precision 26% (179 votes).”