National Geographic for Kids http://www.nationalgeographic.com/kids/
Tritt Elementary Memo Updated weekly for new school activities. http://tritt.typepad.com/thursdaymemo/
Tritt Elementary School website http://www.cobbk12.org/tritt/
A great website with learning (games) activities for students to learn spelling words. They are even separated by the units we do each week. http://school.elps.k12.mi.us/donley/classrooms/berry/sitton_spelling_activities/2ndgrade_spelling/core_word_units.htm
We've used this in class and the students love it and asked me to put it on the links page. It shows the moon phases for each day of the month. http://stardate.org/nightsky/moon/