Hi Bill, recognise your name from the uwphoto mail list.
you have to reply to a topic (like this one) first. Its to stop bots from subscribing and spamming.
I have bookmarked "new topics since last visit", or read the forum on tapatalk (mobile or ipad).
you can follow an individual topic (click follow this topic, upper right). There is a similar button for 'follow this forum'. you can only follow individual forums, not a collection of them.