J.L.
Check out www.kidwinks.com. There's an Events Calendar where you can click on a day to find out what's going on, or you can search through the Ongoing Activities section for different types of activities (indoor vs. outdoor, museums, etc.). If you become a member of kidwinks, which is free, you can sort the search results in order of distance from your house. There's alos a Kids Eat Free Calendar in the Restaurant section - click on a day to find out where kids eat free or cheaply that day.
Hope this helps,
J.
Co-founder
kidwinks.com