We make web and mobile applications. We make them in all sorts of technologies but mainly the Java based stack.
We're constantly playing with different technologies to increase the efficiency and security of our core platform. Anything from Bootstrap, JQuery, Sencha, Titanium and Phone Gap through to more traditional tools like Javascript, HTML (5!) and Java.
Quite often an application will require features that allow the client to update content, register users, email out important information and integrate with other sites, APIs and social networks. When the need arises, we use Cookie Jar to build these sites and applications.