Online panels have matured at an incredible pace, like nothing else in recent memory.  Researchers are now confronted with changing and often conflicting practices on issues such as panel recruitment and utilization, incentives, response rates, professional respondents, mixed-mode, panel/river hybrids, and respondent data quality.  This half-day panel session will bring to light the most effective practices currently employed.  We will also cast our gaze forward, in an effort to predict what the future of panels might be.