This ESOMAR/GRBN Online Research Guideline is designed to help researchers address legal, ethical and practical considerations in using new technologies when conducting research online and is an update of guidance issued in 2011. To ensure that it is in line with most recent practice, in addition to other updated sections, this new draft Guideline also contains: 1. New guidance on passive data collection requirements 2. A new section on incentives, sweepstakes and free prize draws 3. A new section on sample source and management 4. An updated section on specific online technologies such as tracking, cloud storage and static and dynamic IDs.