Hi Mark... Hope you're feeling better.
Thanks for asking about venues (although the map suggestion on this particular post was simpler in terms of using the EasyArticles map technology for EasySocial events - I don't think it currently is there in terms of being able to select your point(s) direct on the map)
The wider venues concept is I think about being able to have an ability to maintain a detailed info page on a venue. I don't know if this could be done using EasySocial 'pages' or something - but the idea is the admin could build up a list of venues (perhaps with assigned authors too). The event creator can select one as the location for their event and what it means is the front-end user can then click from the location title / map on the Event page right through to the 'Venue' page... that would be all about the venue.. and also show what events are happening at that venue - allowing the click back to the event pages for each.