Readers Respond: Technology To Project Your Event

From the article: Incorporte Portable Jumbotrons at Your Community Festival or Outdoor Event

Community festivals, concerts, sports and outdoor events are obviously well staged, but sometimes the crowd sizes get large and it could be difficult to see. Or an indoor event grows so large that crowds want to see the presentation and outdoor areas are setup to show what's happening elsewhere. Please share what tips/technology you have for these situations. Thanks!