Urban planners, designers and members of the development community in Miami who Tweet will want to bookmark this resource: Planetizen’s comprehensive list of the best news and observations about urban planning, design and development available on Twitter.

Planetizen is a public-interest information exchange provided by Urban Insight. The list contains links to the Twitter feeds of news sources and blogs, individuals, non-profit organizations, planning, construction and architecture firms, and government entities, all of whom are active in the Twittersphere. You’ll find links to individuals like Miami’s Steve Mouzon, non-profits such as Urban Land Institute, and publications including ARCHITECT magazine.

The list was created in 2010, but most of the Twitter feeds are still active today. Miami urban planners looking to keep informed of what’s happening in other cities around the U.S. and the world will definitely want to follow these Twitterers.