Boolean Searches

This is a great alternative to google that helps students learn to refine their searches. It is apparently safe and doesn't throw up naughty sites.Boolify website

Checking the owner and history of a website

and Alan November was a keynote speaker at the LATS Conference 2010. He shared sites relevant to safe searching on the web and discussed how to teach students to be effective and evalutating users of the web. Alan introduced a few websites you could use: type in the domain name of a website and it tells you who owns the domain so you can evalutate the information – type in your website and get it's history from its launch and view its different versions and how it's changed over time.
A list of bogus websites that can be used to demonstrate the need for caution are on these two sites: Alan November's website.