A few weeks ago I had to give a talk at the seminar of the computer graphics and multimedia institute of Prof. Leif Kobbelt. He chose the topic Progressive Photon Mapping for me and it turned out to be a really interesting technique for global illumination.
I used my usual presentation template as I really like the style and up to now it proved to be very well accepted. The hardest part was to visualize the algorithms, especially the light paths. But I think I did a pretty good job, as people told me that this was much easier to understand than the usual bullet point and textual description.
You can find the original paper for this technique at the website of the University of San Diego: http://graphics.ucsd.edu/~henrik/papers/progressive_photon_mapping/
And here are my slides: