Advertising Agency Media Buying Assistant. Planet Central, a growing ad agency with offices in Richmond and Charlotte, has an entry level opening in Richmond. Duties include executing media orders for national and regional clients, communicating with outside media reps, preparation and reconciliation of schedules on traditional and digital media platforms. Ideal candidate will be well organized, detail-oriented, have a good understanding of ad placement, good with numbers and work well on a team. Must be proficient in Excel and have a 4-year college degree. To apply, e-mail resume to address included with salary requirements or fax to 804-726-9438.