We need to make our cities more connected and more resilient to the challenges we face.

WHITEHOUSE: The White House

The things that make our cities work and our people go -- transit and public safety, safe housing, sanitation, parks, recreation -- all these tasks fall to you.

WHITEHOUSE: Talking Jobs with America��s Mayors

We also looked at several groundbreaking building systems that stand to make our cities stronger and more sustainable, starting with a new type of flexible superglass that is stronger than steel.

ENGADGET: Inhabitat's Week in Green: sexy green cars, glass strong as steel, and Tianjin's Eco-City revealed

Brooklyn, Chicago, Philadelphia, Buffalo, and Detroit cut broad avenues through existing street grids as they advanced the Beautiful Cities movement aspiring to make our new cities better than Paris!

FORBES: Can Austin, TX Become The Dubai Of The United States?

Up north, three Silicon Valley cities make our list: San Jose at No. 8, Oakland at No. 14, and San Francisco at No. 19.

FORBES: America's Most Overpriced Cities

Business schools are positioned to make meaningful contributions to our home cities.

FORBES: As the Year Begins, the Promise of a Bright Future

How can we further its growth and foster its magnificent freedom without allowing it to be used as a tax haven that drains funds our states and cities need to educate our children, and make our streets safe?

CNN: Clinton Supports Moratorium On Internet Sales Taxes

We, and some of our rivals, are partnering with city authorities and electric infrastructure providers worldwide to make electric vehicles in cities a viable option.

BBC: Viewpoint: The future of mobility

What are we doing to make sure our sheriff's offices in rural counties have access to some of the resources that some of the big cities do in order to deal with some of these emergencies?

WHITEHOUSE: The White House