sli.do
This service allows people to post questions during the event and vote on others' questions. Speakers can view the list in order of the number of votes received during the question period, thereby efficiently satisfying the demand for questions.
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This page is auto-translated from /nishio/sli.do. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.