More to explore:
great ideas - kids of all ages
Letting kids LIVE! An awesome list of easy things for kids, ages 1-3.
Have fun without a screen! @Cathy James @ NurtureStore
Summer art activities for kids -- great list of ideas!
activities by age
Activities for Ages 1-4
Activities for ages 1-4
This is a BIG list of activities for kids age 1-4.
activity ideas for ages of 1-5.
Shells and Water Toddler Play. This would keep children of all ages entertained for quite a while :)
Birthday Party Activities for Every Age (via Parents.com)