The UK FOSS4G community is having a 1-day virtual conference on this coming Wednesday June 17th, with 3 tracks of presentations across a wide variety of topics:
tracks and times:
read the abstracts here:
Due to the time difference, the schedule runs from about 1am to 10am Pacific time, and presumably recordings will be available for most things after the fact. Registration is open for the next 24 hours:
Cost is free, though they do recommend a few charities that they would like to direct donations to if you are able.