I have a new site which is just 14 days old. I fired just a few links at it and did a few exchanges, even bought a few, all good strong links. All were relevant except two (but I own them) I am used to the PR going up and down in the tool bar, but it seems that many of the links, mine, swopped, bought have mostly dropped to zero. Why is this. The site isn't banned. In other words explain why the link partners are all showing PR zero now
Is this just happening today? If so it could be a blip. I have had google pagerank tools tell me that google.com is a zero at times. Keep trying over a day or so.