In Norway, the association of companies have made a socalled "Safe Catalogue"
http://www.tryggkatalog.no/
Which sites do you think you find on this site?
A related site is "The alert list."
http://www.varslingslisten.no/
"The Google search engine maintains an index of all of its internet data across a set of servers located various physically separate Google Data Centers. Search queries are distributed to the Data Centers via the Google Name Server. Updates to the index will occur gradually as one server after another updates. While updating is in progress, it is possible to obtain a different Google index for the same website at different times. This process is sometimes called the Google dance. This movement of the index allows you to follow the beginning of an update process and to estimate the final site index position after the update process is finished".
Source:
http://www.seoadministrator.com/data_centers.html
Is it possible for Google to dance better than human beings?
Is it possible to have an option that is safer than safe search?
Sometimes spiders is better than human beings.
"He said, the only thing that did not lie was mathematics, simply because it could not."
Kjell Gunnar Bleivik
http://multifinanceit.com/