My completely unscientific opinion is once ever month and a half or so....and I have discussed it with other internet marketers and thats the best number we could come up with.
The last update was April, right? Next May, June, August, or Every 3 months? I want to make a target for my blog. Is there someone who can help me?
Google PageRank Will be Receiving Four Updates in 2010 Google PageRank goes through updates frequently, generally every three months. It is well known among the bloggers and webmasters and they are well versed with the importance of Google PageRank. Data collected from the previous records reveals that the search engine giant has made it a norm to update it every four times in the year and the real PR receives daily updating, but cannot be accessed by the common people.
There is no any fix time for google update but history of google updates tell us that approximately google updates database after 3 month. Everybody can guess but not be sure about it. Sometimes updates are done before 3 or 2 month. Thanks NV Marketer
Google have 2 update pagerank: 1. Update major --> all of the whole site --> every 3 month 2. Update minor --> only a few site --> every month 31 December 2009 update major from Google -->next update--> 3 April 2010, the range is 3 month, so next update between end of July 2010 - first august 2010
google updeate its page rank after every 4 months,,, It is mostly based on how many back links perticular site has/.............
Only Big G knows exact date of next PR update. Better you concentrate on BL building of your sites. DON.