1. UnityAds allows developers to monetize their games with video ads within Unity. 2. The document provides information on sound effects and music for games, including free and paid options for adding sound effects, loops, and music packs to games built with Unity. 3. It also lists several digital audio workstation software options for editing sound on Windows and Mac like Logic Pro, Ableton Live, and Pro Tools, as well as 3D and 2D design software like Maya, Blender, Photoshop, and Illustrator that can be used along with Unity.