AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Google Maps is a web mapping service. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bicycle and air, or public transportation.
Lightbox is small javascript library used to overlay images on top of the current page.
LiteSpeed is a high-scalability web server.
Prototype is a JavaScript Framework that aims to ease development of web applications.