How to keep in touch:
1/ Work related? Contact details are here. This will also work for public speaking invitations.
2/ You can follow this blog and related content on Twitter
关注 @r_c
3/ You can subscribe to posts via RSS. This is the option that I would most recommend; if RSS is a mystery to you. I wrote a comprehensive guide on how to use it here.
Beyond that there isn’t much else that you can do to keep in touch with this blog. I am even questioning whether the blog should be on Twitter any longer, given the decline in social discourse.