We placed 5 ads on every page of http://www.allyourinfo.org . We have over 15k pages indexed on Google (it was 100k+ not too long ago) and a homepage PR of 4. People with similar stats are reporting XX,XXX co-op weight yet our site has never broken 1,000 and is now languishing at 31. What can we do to increase the site weight enough that we can actually get some impresssions?
You are not the only one to ask this. There are a few other threads here with people complaining about low weight right now. Seems to be some problen going on right now, of unknown causes. Hopefully it's temporary.
Have you checked your weight using the Google API as the coop use? Might give you insight as to what the site is looking at.