Ciara Byrne is a full time techie and part-time writer. She has worked as a software developer, team lead, engineering manager and mobile standards expert. She is based in Amsterdam, and her interests include clean tech, mhealth, emerging markets, European startups and cycling in high heels. Follow her on Twitter at @deciara.

stories by Ciara Byrne

Foursquare makes global push: 50 new cities

Popular location-sharing game Foursquare has just gone global with the announcement of 50 new cities worldwide, doubling the service’s previous coverage. The company says it chose the cities based on feedback from users requesting the service.

The new cities take …