Website

• jQuery
• Comet
• Nginx
• memcached
• CakePHP

API

• TornadoWeb
• Python

Databases

• MySQL
• GeoNames

Infrastructure

• GlusterFS
• Debian GNU/Linux

• Amazon Web Services

  EC2, S3, SQS, EBS, RDS, SimpleDB, CloudFront, CloudWatch

APIs

• Facebook
• Flickr
• Twitter
• WeatherBug