When will Google do the PageRank update for 2012?

Google will do 4 PageRank updates during 2012.

• January (Expected: 30 January - 2 Februari 2012)
• June (Expected: 30 June – 2 July 2012)
• October (Expected: 30 September – 2 October 2012)
• December (Expected: 31 December – 3 January 2012)

PageRank(PR) plays a major role in ranking website in search engine, it also determines authority of any site. More PageRank means more traffic and more money in your pocket. So this is very important for all webmasters and bloggers to prepare for the next Google Page Rank Update.

So keep do SEO!
And good luck!