Just watched the replay of Bigwave's chat on the Crystal Ballroom Periscope. I found the topic of whether people were involved in forums previous to the new technology very interesting. I haven't been active online until this tour, really. I've peeked in some, but find the forums sort of boggish and hard to navigate. But look, I'm here now, lol! I was pulled in through a Facebook page to help find tickets to the shows, then invited to another group, found the CB, and now I'm here. But I was a Prop subscriber back in the day, joined U2.com as soon as it became a thing, and was never as involved as now. Really didn't use Twitter much except to post amusing thoughts and pictures to my immediate friends. Now I use it to find more U2 content, periscopes, mixlrs, articles, etc.
I guess FB and the CB are more immediate forms of social media. You don't have to search, it just pops up in your feed or as a notification. So much easier!