Six months after the last Google pagerank update, google has started to update its datacenters. The best part is is Pagerank 6 now :) .

I have collected a few tools to check pagerank in various ways, various data centers. Please do note that different tools listed use different datacenters so the result may vary and I suggest you check once in google toolbar . It is normal that it shows different pagerank in different datacenters, In the past it’s usually lasted a few days and then they all gave out the same PR.

PageRank Check
PageRank Checker
All-in-One PageRank Checker (AJAX based Alexa+Google,Yahoo backlinks+DMOZ lookup)
Various Datacanter