How to Create a Flash Demo (for showing software)

Use one of the following:
http://www.debugmode.com/wink/
http://www.prasannatech.net/2008/08/how-to-create-flash-demo.html
http://www.linux.com/articles/113764
http://www.unixuser.org/~euske/vnc2swf/index.html
http://apusay.blogspot.com/2008/01/30-screencasting-software-with-download.html
http://wc4.worldcrossing.com/webx/.1dea8f49

To avoid the crash of the X11 in MATLAB

Add the following lines

% To avoid the crash of the X11
% See http://www.mathworks.com/matlabcentral/newsreader/view_thread/158572
disp('Loading opengl software to avoid X11 crash')
opengl software

At the end of:
/usr/local/matlab/R2008a/toolbox/local/matlabrc.m

Linux - howto convert iso-8859-1 charset html files into utf-8 charset files

$ iconv --from-code=ISO-8859-1 --to-code=UTF-8 ./oldfile.htm > ./newfile.html

ONLY convert file that really are in old charset to new charset

If you convert a file that was already in the new charset format or that you converted manually before or inserted text components in new charset inbetween old text components - then you may get something worse ... neither UTF-8 and nor ISO-8859-1 ...

hence make sure your OLD file IS in OLD charset before running the tool !!

Linux distributions for Parallel Computing

In http://en.wikipedia.org/wiki/Beowulf_(computing)

you can find a list of live linux distributions for parallel computing