I have a page that used to be indexed by Google but doesn't show up when doing a "site:mysite.com". When I'm on the page, my Google toolbar says it's a PR4. Is it possible for a page to have pagerank and not be indexed?
I would think so. PR (at least visible via the toolbar) is only updated once every few months...pages are added to and dropped from the index all the time.
I've been having the same trouble, check out my thread for updates: Google optimization, indexing and pagerank, related?