Is there an automated tool where we can check the PR for internal pages? Most PR checkers out there checks only the index page...
Yeah I keep getting that 'busy' notification too. Probably because of the entire webmaster world checking each and every page's PR every hour... Obsessed nerds
I'm out of my depth here but this may possibly be a cause. Google has a new "spyware filter" which detects and blocks large numbers of queries. The feature that causes this trap to be triggered is the "Linking Page Pop" option which performs a "link:" query on all of the linking pages. It is the rapid concentration of this generally unusual query that Google is detecting.
go to www.uptimebot.com You have to register (free) and you want the "single site" search. It is an excellent tool.
I have added Google PR for indexed pages - no registration required. Home page is here: www.siteometrics.com