Multiwavelength (MW) Raman and HSRL lidars have become important tools for remote characterization of atmospheric aerosols. In this presentation a short review of recent accomplishments in this field will be given. The application of MW systems for particles hygroscopic growth and dust transport studies will also be considered. Recent algorithmic advances for bulk particle properties that speed up computations will also be discussed. This approach is more tolerant to input data errors and permits the number of optical data to be reduced. The trade-off of optical data measured by lidar versus retrieved aerosol physical quantities is considered in the context of the ACE mission.