Maa2too3a, or ‘Happin’ in English, is a free app that uses news and crowd-sourced information to geo-tag disruptive events in the city as they occur, allowing users to mitigate risks or simply save time by avoiding them. Launched in May 2013, the app now has over 100,000 users, according to the developer, Mohammed Taha. “It’s a tool to keep people safe,” he says. And on calmer days, it can be used to simply avoid traffic jams or other routine problems. — nextcity.org

Google's Street View is slowly covering more and more of the world's surface, but it still has holes. Now though, you can help fill them—and all you need is an Android phone or DSLR.

Google has just launched a new Street View feature which allows any user to recreate the usual Street View experience by stringing together photo spheres along paths which they define. — Gizmodo

[My Ideal City] is an instrument where all people in Bogota help to create their city by interacting in proposals made for their Downtown in crowd sourcing, thus impacting design through real time interaction and direct feedback. Once the different initiatives are defined, the process is completed by the population crowd funding its own initiatives. — Aedes

In construction or renovation of buildings you'll be able to identify poorly insulated areas and badly wired electrical outlets before you put the drywall up. You'll find places where water has penetrated the structure where it should not have. Identifying mold and moisture is a much easier task with the Mµ Thermal Imager. — indiegogo.com

These two concepts — crowdfunding and urban improvement — have been married by several recently launched startups, both in the U.S. and abroad. These civic crowdfunding startups tap local communities and businesses to raise money for community centers and urban beautification, giving citizens a sense of ownership and a stake in the future of their cities. — mashable.com

Brazilian real estate developer Gafisa decided to ask people directly, what they want in their new apartments? Launched last week, the Edifício Colaborativo (Collaborative Building) initiative transformed the company’s fan page on Facebook in a crowdsourcing platform, intended to harvest innovative ideas for a new building. — PSFK

From April 11-30, we're gathering up your ideas: from improving local parks and streets all the way up to rethinking whole systems, like transit and trash disposal. You can explore, discuss, and debate everyone's ideas right here. — urbandesignweek.org