Volunteerism has long been woven into the lives of Ukrainians. Since 2014, some parts of the Ukrainian society began to volunteer in the military sphere. Since February 24, 2022, volunteering in Ukraine has received a new impetus. It is due to the possibility of online volunteering that many Ukrainians became volunteers in the Russian-Ukrainian war because not all of them were physically able to get involved in volunteer activities. This article defines the concept of volunteering and e-volunteering. It outlines the current data on the state of volunteering. The data of the author's study “Volunteering during the Russian-Ukrainian war. Search for opportunities”, which was conducted in July 2022 has been presented. The purpose of the study was to identify relevant e-resources for searching for volunteer opportunities. The result of the survey indicated the active growth of volunteer activity during the full-scale Russian invasion of Ukraine. According to the research data, the largest share of respondents gets information about volunteer opportunities through online resources, platforms, and volunteer chat rooms. The authors have presented available online resources to access e-volunteering. They also have provided links to the telegram channel (a platform-based cloud messenger), volunteer platforms, and websites that can help a novice volunteer become familiar with the areas of volunteer activity and identify his or her own associates.