Twitter: Spatial Patterns; Economic Activity; Social Activity

New Study Finds Twitter Reinforces Place-Based Networks

A new study that explores the geography of twitter networks finds that rather than making place obsolete, their intensity can be predicted by location and proximity, suggesting they enhance location based relationships.

December 10, 2011 - The Atlantic

What Do Twitter Patterns Say About Your City?

A study of Twitter-use patterns found that some cities are far more active early in the morning, while others showed higher activity at night or on weekends.

March 3, 2011 - Sustainable Cities Collective

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.