I'm using Google Sites to make my new photography website and I want to make an Adobe InDesign slideshow for it.
Does anyone know if this is possible?
As your Google site is going to be a website, I don't think you'd be able to get an Indesign slideshow into it. You'd need to have a jQuery slider and slideshow. Search for it on Google, there are hundreds of different ones.
I'm not sure of your experience level with HTML, CSS, or jQuery. For a starting point, if your not interested in learning how to build websites from scratch and you just want to have your personal site up and running, I would look at purchasing a WordPress theme from themeforest or set up a Behance account and build a 'Behance pro site'. Another alternative is to build it with newly updated Square Space. These are all excellent platform to build on and if you don't have a particularly technical background. out of the 3 Behance and SquareSpace are going to be the simplest to use..