Link:url on Google

[Larry]

I read somewhere that Google only lists links with a PR of 4 or higher. That seems to hold for for .com links but not .org links. Does anyone know what the details really are?

Thanks!

[rmjvol]

The short answer is no, nobody (outside Google) really knows for sure.

My best guess is that when you see exceptions to the backlinks >PR4 showing, it's likely:
an error in the toolbar PR estimate
different G data centers being out of sync
the TB PR & the real PR being out of sync
different PR factors being out of sync (like because of dynamic looking pages)
penalities coming into play (such as a page being able to have PR but not pass PR)
Google making it harder to find high PR backlinks by somehow not showing all genuine backlinks
or something else ;)



While I've seen some PR3's showing & PR5+ not showing, I think that the rule of thumb is still pretty accurate.

Good luck,
Ross