Google seems to be switching from 3-4 month gaps between Toolbar PageRank updates to a much shorter interval – we’ve just had another update, less than a month after the last one.
Google updated its “Toolbar PageRank” (the PageRank values shown in the Google Toolbar) on the 23rd of June. This is the second update in a row to come earlier than expected – the previous Toolbar PageRank update happened less than two months after the one preceding it. The gap this time around is even smaller – less than one month since the last such update.
Historically, Google has updated its Toolbar PageRank values roughly every 3-4 months (prior to the last update, which came earlier than expected, the previous PageRank updates happened on April 1st, 31st December and, before that, in September). Are we seeing the start of a shift towards more frequent updates?
Please note that the Toolbar PageRank does not necessarily reflect the current standing of a page – Google continually updates PageRank values internally (at least every day), but only provides a “snapshot” every so often.