The document lists Turkish brands and companies active on various social media platforms like Instagram, Twitter, Facebook, as well as e-commerce and travel websites. It provides over 100 brand names grouped under the headings of the different platforms and websites they use, including major brands like Mavi, Koton, Vakko, Redbull, Akbank, Ford, Turkcell, Samsung, Nike, THY, Ulker, Efes Pilsen, CocaCola, P&G, and travel sites like ETS, Tatilsepeti, and Booking.com.