These presentations cover a variety of topics and have been delivered to audiences in a wide range of venues, including educational “brown bag” lunches, lightning talks, user groups, library and conferences. Older, potentially out-of-date presentations can be found at Legacy Presentations.
Technical Presentations
Over the years, I’ve been involved in a number of startups. As a professional writer and anthology editor, I’m also effectively running a side business. It shouldn’t be surprising that I’m interested in various business topics. Every once in a while, when I’ve accumulated enough information in an area, I’ll produce a new presentation and start looking for an audience to which to present it.

System Architecture Views
If you’ve ever had to create any of the various DoDAF Architecture Views, such as the OV-1, “High-Level Conceptual View,” or the SV-1, the “System Interface Description,” then this is the presentation for you. It’s a free compilation of some of the best and most interesting examples of DoDAF architecture views from across the Web. If you need to create a diagram, you’ll find an example of it here.![]()

Git for Real
Introduction to git, the software configuration management (SCM) tool of choice for software development projects across the world. Learn about the evolution of SCM tools, view the “Cheat Sheet” on how to manage your git repositories, and find out about best practices.![]()

Killer Business Models
You’ve created some killer software, but is it sufficient to form the basis of a viable business? How do you describe your business model and effectively communicate your vision to others? How can others evaluate your business model and determine whether your vision and strategies have merit? This talk provides a conceptual basis for defining, documenting and evaluating business models. It uses real-world examples to show how these concepts can be applied to build businesses.
Science Presentations
These presentations were created because I’m interested in the topics. They have been conducted at “brown bag” lunches and SF conventions.

Elevator Up, Please!
Space travel is dangerous and expensive, but it doesn’t have to be. Find out about an alternative way to reach orbit that is rapidly becoming feasible and may eventually change how we view our world.

Titanic: The Forgotten Passengers
Even after 114 years, the tragedy of the Titanic still echoes in our collective memories. There are so many stories of that fateful journey – of bravery, of cowardice, of self-sacrifice, and more. But Titanic wasn’t just a human tragedy. Come back to Titanic with me, and let me tell you about…the forgotten passengers.