This article discusses wireless technologies, including advanced wireless technologies, 5G, and molecular communications. Wireless communication is the transmission of data over a distance without requiring wires or electrical channels. Advanced wireless technologies include WiMax, satellite, Wi-Fi, and wireless networking. 5G is the fifth generation of mobile wireless technology, and molecular communication is a developing paradigm where bionanomachines communicate to perform coordinated actions. The advantages of molecular communication are size, biocompatibility, and biosability.