Free Summer Activities for Kids A NYC Parks guide to free summer activities and programs for kid and families
100 Free Things to Do in NYC Summer with Kids A wide-ranging list of free activities across the five boroughs and ideas for day trips outside NYC
101 Things to do with Kids in NYC A robust list of museums, playground, cultural landmarks, summer treats, etc.
The Best Summer Activities for Kids in NYC A Time Out for Kids NYC guide. Some activities are free; some involve a fee. All are opportunities for exciting summer fun.
Summer Guide The NYC Official Guide to summer events