This paper is intended to describe modern applications of colloids. We will focus on two topics, the versatility of colloids in industry due to tuning of the interactions and assembly, and the use of particle shape to obtain new properties. In the section dealing with interactions, we will focus on naturally occurring colloids that must be dispersed, jammed soft particles, tunable and programmable interactions between colloids, reinforcement of polymers with colloidal aggregates, and conducting nanogels. In addition, we will discuss how anisotropy can be used to bring about new materials for applications.