I love finding good command line replacements for UIs. One I've grown to rely on a lot these days is awslogs:

https://github.com/jorgebastida/awslogs

Which allows you to stream Cloudwatch logs via a command like:

  awslogs  get <log group name> ALL --watch

which is cool because you can just specify the log group and get all streams without having to dig around for the specific stream in the AWS console.

There's a python based command line HN client (https://github.com/donnemartin/haxor-news) that's nice, although I think the dependencies need updating (I get various conflicts if I try to install other packages in the same venv).

For twitter, rainbowstream is nice:

https://github.com/orakaro/rainbowstream