A communications and PR expert who advises and directs the communications function for global corporations recently told me (since I used his expertise for my funds' portfolio companies) that all communications have to flow to one final site. As an example, think of The Wall Street Journal. All mobile apps, website, print, video, Facebook, Twitter, etc., flow to their sources of revenue -- the subscription and advertising. The reader sees the headline but will have to subscribe to see the full story and other benefits of membership.
For us, we have to decide which final medium we want all communications to flow to. This can, and, in my opinion, should be the U20 website. In other words, all media should flow to the site. Be it the Yahoogroup, Forum, Facebook, etc. As an example, one may presently subscribe to all three forms of communication. Maybe others are just one or two. The contents should be just headlines or announcements, which should direct one to the U20 website to see the full information and to receive feedback. Members get more information and benefits while the public get what's important in terms of marketing, regattas, etc. Many of the best companies don't answer their Facebook, Twitter, and other messages.
Kind regards to the general membership.