Fifteen years ago, when I was teaching computers to grades K-5, yahooligans was the popular, safe search engine that I used with my students. This year, I tried to use yahooligans with my kids and quickly got frustrated because the search didn't bring up any results. Bah.
I don't know why I didn't think of this before, but I just typed in "kid safe search engine" on google and came up with a result.
Google has developed a safe search engine filtering technology that is used by several other sites. I found one that is the primary site:
If you scroll down, there is an explanation of what is filtered and what isn't.
Then, I found another one called KidRex. It uses the safe search technology and then goes beyond it to add their own list as well. http://www.kidrex.org/
I googled for "consumption illness" while writing questions for Autumn's Carry On, Mr. Bowditch unit. I came up with several results that I was comfortable with.
I'm sure neither of these sites will be perfect, but I'm glad to have an option other than the unfiltered Google engine.
If there is another one that you like to use, please comment and let me know!