1. A method for a web conference system, the method comprising: A computer detecting a question from a first participant in a web conference, wherein the web conference includes one or more participants; the computer determining whether one or more existing threads relate to the question, wherein the one or more existing threads includes one or more question and answer sets, and wherein determining whether one or more existing threads relate to the question further comprises determining whether one or more keywords contained in the question are present in the one or more question and answer sets of the one or more existing threads; based on determining that one or more existing threads relate to the question, the computer associating the one or more existing threads with the question; the computer determining whether the question has been answered by the one or more participants; and based on determining that the question has not been answered by the one or more participants, the computer transmitting a reminder to at least one of the one or more participants.