These encyclopedias are a great general reference point to begin your research.
The list below include Spanish Language materials.
Don't forget to check out print encyclopedias as well.
Spanish Reference Center -Britannica
Britannica On Line School Edition (English version)
Britannica Kids Edition
Biografías y vidas
Guía del mundo
Wikipedia la enciclopedia libre
Wikipedia is becoming a respected resource. You will find information that is contributed from people all over the world. When you use Wikipedia it is always a good idea to verify the information by checking other sources.
Nueva Enciclopedia Cumbre en Linea
Use this link at school. You can link from home using the Hennipen County Library website. You need a library card.