AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
FullCalendar is a full-sized drag and drop JavaScript event calendar.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Modernizr is a JavaScript library that detects the features available in a user's browser.
OpenLayers is an open-source JavaScript library for displaying map data in web browser.
Plone is a free and open source content management system (CMS) built on top of the Zope application server.