The file size of the slide is too large, so you need to download the file completely by using "Save As...". After you will enjoy the slide. The license of the slide is CCA 2.5, so you can use the slide freely.
(Click the right-button, and choose "Save As")
My English in the slide may be incorrect, could you tell me my mistake?
P.S.
I'm sorry. Because I made the first version for a certain event in Japan, the slide includes international great sites enough.