IMO, the web 2.0-ness has a couple important dimensions:

- familiarity with a few core technologies.  RSS, tags, wiki, blogs.  Therefore, "have you subscribed to RSS or used an RSS reader?", "have you edited a Wiki page?", "do you read blogs? have you posted a blog post?", "have you tagged content?"

- online content creation.  Creating online personal profile, storing/sharing files or photos, communicating via blog/forum/wiki/social network.

- comfort level with online security.  Best reflected in financial comfort.  "have you paid for something with paypal?", "how often do you buy online with a credit card?"

So here is my apparent Web 2.0 IQ

Ning - yes admin several sites
SocialText - no
WordPress - sorry blogspot
LiveJournal - no
Flickr - yes but link picasa more
del.icio.us - yes religiously
Facebook - yes to stay in touch with kids and watch rss status changes
MySpace - once upon a time - too juevenial
Stumbleupon - not a fan
Twitter - yes but not often
YouTube - yes
SecondLife - couple of times..interface is too clunky for me
Pownce - tried it once
Last.fm - no
Jaiku - tried it once
GoogleReader - religiously
Digg - not much
ProgrammableWeb - no
Wiki’s - who doesn't?
RSS / ATOM feeds - who doesn't

My question is - how has that made me more effective in my job?

Not saying it hasn't but that's alot of time chewed up over the course of a year.

I love all this stuff because my job is to facilitate learning, the question for me is how do we structure these activities into improved business processes which of course is your job.

I integrating it into the training/learning world slowly but surely. 

Some industies are picking up on it slowly but progress is sure and I think we are at the head of a long tail. 

Faster please! 

the list of services will provide you with a yes or not.  but with hundreds of those not sure that will really show that someone understands the Web 2.0 concepts.

I would ask about SLATES to see if they understand what it means and explain how each of these relate to Web 2.0 and the technologies/tools/utilities that make the SLATES concept possible.

Search

Links

Authorship

Tags

Extensions

Signals

Thanks jeff for starting this chain. I've been thinking about creating a web2.0 "test" for candidates that I interview, but I usually just talk it through. We should quantify it. I lean towards Tony's suggestion of understanding concepts more than knowing the tools, since the everyday I see a new tool and my head hurts from all of it. So I re-phrased the question above (in the subject) and gear it towards seeing how someone has integrated web2.0 into their on-line life as opposed to tools they've just dabbled with. 

 So questions that come to mind:

• Have you ever bought anything online? Of course they have, so:
  • How did you find what you're looking for?
  • What was better about your experience than 3 years ago.
  • Did you do anything to make the experience better for the next person?
• What is the easiest site you've used and why ?
• What made it easy and a rich experience for you? what would you do improve it?
• How do you communicate with your work peers, friends. How would you improve it?
• How would you improve the way employees communicate with their colleagues at work?
• What kind of tools or software make you more productive? What would you change about that software to make it more efficient?
• And, how do you keep track of all this? Do you have a personal information aggregation page of what's important to [insert candidates name here]?  

There are no exact right answers, but if i engage in a discussion following the above questions and ask the person to name some of the tools they use, then I'll know how "2.0" savvy they are. And most importantly, I want to come away from the conversation/interview having learned something new and improved myself. That's what collaboration and Web 2.0 are all about. Perhaps we could call that "Interviewing 2.0".