Interactive data tools  and  web mapping applications  are becoming increasingly popular for federal agencies, advocacy groups, and non-profits.

Displaying data from several diverse subjects -- such as climate change, housing, and social justice -- these tools are changing the we think and visualize the world around us.

And not only are they helpful for their creators, but they are an extremely reliable resource for local planners, changemakers, and researchers.

The only issue, however, is that the concept of interactive tools is somewhat new (or at least newish). Not only are they relatively unknown, but they lack a central location -- they're scattered across the internet.

One website,  Millennial Cities , is attempting to change that.

Compiling hundreds of  interactive data tools , Millennial Cities has added tools from multiple federal agencies, universities, and other groups to create a single, one-stop-shop to meet the needs of communities, planners, and curious observers.

Here's a small sample of what Millennial Cities has to offer: