We have received several (two) questions recently regarding commenting and posting on Blog Of Sceince.
In order to comment, simply click on the "peer reviews" link at the bottom of the post, type your comment in the comment box and click "Publish."
For those who would like to post to BoS, there are two options.
First, one can email me a piece, and if it seems apropriate for BoS, I will post it and attribute it to you.
Second, for those who might like to post more regularly, I am open to allowing other bloggers to post here. You would need to create a Blogger account (which takes maybe two minutes and is free) and then I could add you as a contributor.
I can be contacted at email@example.com