9.	Britannica.Com:   Encyclopedia Britannica has traditionally offered the best encyclopedia in the English speaking world.  Recently they have moved all of their information to the net; most of the information is for free, though they change their minds occasionally.

10.	Smithsonian Institutution Si.edu:   Smithsonian is the leading source of scientific information in the US and possibly the world.

11.	Google.com:  You can enter any word and search through billions of web pages.  A wonderful way to track down key information worldwide.  

12.	Askjeeves.com:  A similar site put not as comprehensive in our experience.