Keep in mind, most of these work anywhere in OS X, not just in the terminal.

Adding on to this - this works in many places in OS X, since many programs happen use NSTextField, which can have shortcuts configured at the OS level.

You can further customize the shortcuts available in a file called DefaultKeyBinding.dict

I use a very slightly modified version of this: https://gist.github.com/cheapRoc/9670905

I highly recommend looking into that, for anyone who is familiar with emacs keybindings and would like them everywhere.