Author Mark on multiple websites - Is this possible?

[PhoenixLander]

Let's assume that someone has a blog and they've added the author tag to that so they appear in author search. Let's say they then write an article on another site? Can that site use the same author mark for them? I guess the question is: Can the same author mark be used across multiple sites?

[PoweredbySearch]

Yes you can...to do this you'd simply add your name to the bottom of your guest post with the rel author tag. That would look like this for me:

.com/113432564234680420222?rel=author”>Marc Nashaat

So you'd simply replace the URL with your G+ profile and insert your name as the anchor.

Marc @ Powered by Search

[gtrotter666]

I think you would also need to setup your G+ account to show you contribute to that blog.  I remember from setting this up a while ago that it is a two way thing (to prevent content being attributed to an author without their permission).  You will need to add the blogs URL to your G+ account as well for authorship to work.