This is a great way to get started on PKM, Harold. I think a good interim step for people who want to go to step 4 but not into full-on blogging is to use microblogging, like Tumblr. Lets you interact with what you find without having to make the full blogging commitment. I still have this strong feeling that to get to an application stage of what I know, I need to have some kind of reflection built into this process beyond commenting on other people's blogs. I need a way to synthesize what I'm reading and apply it to my personal situation within my own context.

Great post!