Planet13 - 6:34 pm on Aug 4, 2011 (gmt 0)
All I can tell is from my experience in print about 15 years ago.
I would try and contact the editor of a specific department and just mention that you knew of a few newsworthy things. You can try emailing individual journalists if you like. Just say something like, "If you are going to be covering topic XYZ and need a professional's opinion about it, you can feel free to contact me at..."
If you can feed them a scoop - meaning that you can alert them to something newsworthy even if it is NOT related to your own company - then that will go a long ways toward creating good will.
You have to think of it as being something newsworthy - even if it is flattering news about a competitor of yours. right now, you are just trying to build a relationship.
You could also, if you have some photos that might be relevant, just mention that you would be willing to donate them to them for free for their stock file of photos.
I apologize if this is not particularly applicable to your area, since again my background was in print, and it was for daily newspapers and monthly publications.
I don't think people would be open to "revising" already published content. usually their job is to churn out new content. So if you can help them churn out that new content, I think you will be better off.
Hope this helps.