Imagine stopping a speaker at a large conference and
asking him to repeat what he has said. Well yes, you can do that but at
the third, fourth and fifth time it may become a little tiresome!
With an online conference (eConference), you do things
slightly differently because you can read the presenters paper before
he/she appears, and re read it and read it again (and again)!. This way
you can reflect on the presentation and formulate questions, ready for
meeting him/her online.