AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Google Analytics is a free web analytics service that tracks and reports website traffic.
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.
Plesk is a web hosting and server data centre automation software with a control panel developed for Linux and Windows-based retail hosting service providers.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.
Umbraco is an open-source Microsoft ASP.NET based content management system.