brujo - 4:50 pm on Mar 4, 2013 (gmt 0)
Incorporation of verified author profiles (that you have listed already) seems to be a big and "newer" one that shouldn't be overlooked.
We've been measuring the difference to ranking on 15 websites after incorporating G+ authorship.
All have moved up significantly.
From my understanding Google said it isn't using verified authorship in its ranking (as yet) - despite what some have said? Unsure about this.
Still I am only going off what our small test is showing. Major shifts upwards on sites that have been verified and show in the serps with author profile.
Carlos // @isoosi