The best place to start is the Amazon Prime website itself. Here you can find a dedicated section with all the latest deals and rewards that will be available on Prime Day. Another helpful source of information is social media. Amazon will undoubtedly be promoting Prime Day heavily on its own channels. And many Prime members follow relevant hashtags (such as #PrimeDay, #PrimeDayDeals, or #AmazonPrimeDay) to find the best deals.