Add presentations post.

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+I generally write my presentations up in [[LaTeX]] and use [beamer][]
+to convert them to PDFs for display.  I don't really like PDFs though,
+they're big and unwieldy.  I was just looking around at alternative
+methods and ran across the older [Linux for Presentations
+Mini-HOWTO][howto] which lists a number of HTML-based presentation
+formats.  This is definately the way to go, and with MathML (via
+itex2MML, see my [[mdwn_itex]] post for details) I can generate most
+of the equations that I need to fit into a standard presentation.
+
+The two grandaddy frameworks are [S5][] and [Slidy][].  S5 goes back
+to 2004, and Slidy has been around since 2005, so they both go back a
+ways.  The code you'll be writing is fairly similar in each of them,
+so just pick whichever you like best.  If it matters to you, Slidy is
+a [W3C recommendation][w3c]
+
+However, neither of these early projects seem to be actively
+developed.  For example, [this thread][thread] on the [S5 Project
+Google group][s5group] discusses fracturing in the S5 community.  As
+people try to work around issues with the older frameworks, they've
+written up new frameworks. [S6][] wiki has some [pointers to other
+options][pointers].
+
+Personally, I'm going to go with [S6][], since the project uses Git
+for version control which is a *Good Thing*.  There's also [S9][],
+which lets you build S6 presentations with some sort of wiki-syntax
+instead of HTML, if that's appealing to you.
+
+Finally, there's a [webslideshow][] Google group that tracks
+developments in this area.
+
+Good luck!
+
+[beamer]: https://bitbucket.org/rivanvx/beamer/wiki/Home
+[howto]: http://www.shallowsky.com/linux/LinuxPresentations.html
+[S5]: http://meyerweb.com/eric/tools/s5/
+[Slidy]: http://www.w3.org/Talks/Tools/Slidy/
+[w3c]: http://www.w3.org/Talks/Tools/
+[thread]: http://groups.google.com/group/s5project/browse_thread/thread/2b6c0a5c14e1b997
+[s5group]: http://groups.google.com/group/s5project/
+[S6]: https://github.com/geraldb/s6
+[pointers]: https://github.com/geraldb/slideshow/wiki
+[S9]: http://slideshow.rubyforge.org/
+[webslideshow]: http://groups.google.com/group/webslideshow
+
+[[!tag tags/linux]]
+[[!tag tags/tools]]
+[[!tag tags/web]]