a snippet from "A 31-Day Course in Commenting":

today's task, courtesy of Bill Ferriter, you are going to engage another commenter in conversation. Find a post where other people have commented before you and then respond to something one of the commenters has said. The netiquette for doing this is to address your post "@blog commenter" (inserting the person's name where I've referred to "blog commenter") so the commenter knows you're referring to him/her. If you'd like, respond to more than one commenter. Also consider this advice from Bill:
Begin by quoting some part of the comment that you are responding to help other listeners know what it is that has caught your attention. Then, explain your own thinking in a few short sentences. Elaboration is important when you’re trying to make a point. Finally, finish your comment with a question that other listeners can reply to.

Questions help to keep digital conversations going!

When responding to another reader, don’t be afraid to disagree with something that they have said. Challenging the thinking of another reader will help them to reconsider their own thinking—and will force you to explain yours! Just be sure to disagree agreeably—impolite people are rarely influential.

If your thinking gets challenged by another reader in a blog conversation, don’t be offended. Listen to your peers, consider their positions and decide whether or not you agree with them. You might discover that they’ve got good ideas you hadn’t thought about. Either way, be sure to respond—let your challengers know how their ideas have influenced you.

Be sure to track your comment so you can see whether or not the person responds to you. Observe what happens. How does the blogger respond? How does the commenter respond?

The response:

The netiquette for doing this is to address your post "@blog commenter" (inserting the person's name where I've referred to "blog commenter") so the commenter knows you're referring to him/her.

[I had not known that before this instant! Thank you!]

Finally, finish your comment with a question that other listeners can reply to.

Questions help to keep digital conversations going!

I quite agree! 'Question' is the purest form of response---the most-encouraging form of agreement and the most-respectable form of disagreement!

So being a Xombie is not about 'posting articles and bookmarks, with which you may or may not get revenues (depending on how Google feels about you),' it's about 'having opinions (levels-of-agreement) on the news- and entertainment of the day and expressing those opinions in the most-prosperous way possible!'

Show your level of agreement by Becoming a Xombie and asking your questions!