I was overjoyed to find that I already have a profile page on Careers 2.0, which I hear is invite-only. But reading the FAQ, it seems everyone on SO have a Careers 2.0 profile, or I'm misreading something.
From the Careers 2.0 FAQ for programmers:
I never signed up for this Careers 2.0 thing… why do I have a profile?
You have a Stack Overflow profile which is visible to anyone on the Internet (not just employers). The contents of this profile are entirely controlled by you.
What if I previously paid for membership in Stack Overflow Careers?
If you paid for the 1.0 version of Stack Overflow Careers, your profile has automatically been upgraded to Careers 2.0 and you will have a free lifetime membership. We no longer charge any job seekers to participate.
Is there a difference between the two, and if there is, how do I find out which one I have?
Back in Careers 1.0, I did create a CV there but can't recall paying for anything then.