The author recently created a presentation using HTML5 based on a tutorial put together by Marcin Wichary. The example presentation is part proof-of-concept, part instructional piece, and it is part of a larger site on HTML5 and how one can use it to create rich Web-based applications. The more he delved into HTML5, the more he found that it was part of a larger world that a few years ago was thought about as semantic HTML or DHTML. The current version of it includes cascading style sheets (CSS) levels 2 and 3, Java Script centered around the document object mode (DOM), and Java Script frameworks like jQuery and jQtouch that facilitate development of robust applications with limited effort. These technologies are particularly interesting given the growth in Webkit-based browsers typically found on mobile devices. Interestingly, these browsers tend to be more up to date than their desktop and laptop counterparts, and while they often do not fully support popular Web applications, they do enable the development of interactive and easily developed Web-based applications. As libraries become active users of social media sites and distributed publishing platforms, these technologies offer opportunities to build dynamic and relevant applications that pull data from disparate applications together.