Gopher might not be popular, and apparently it's relevancy is disputed. But it is still an interesting bit of internet-history. It still has an active community, and a whole lot of information.

There's also a slow movement to add gopherholes to the tor network. A list of the current known ones can be found here; http://gopher.floodgap.com/gopher/gw?gopher://bitreich.org:7...