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Penguin update numbering was rebooted, similar to Panda – this was the 3rd Penguin release. Google shook the local SEO world with an update that dramatically altered some local results and modified how they handle and interpret location cues. Google claimed that Pigeon created closer ties between the local algorithm and core algorithm. Google announced a significant Panda update, which included an algorithmic component.

Google rolled out their 21st Panda update, roughly 5-1/2 weeks after Panda #20. This update was reported to be smaller, officially impacting 1.1% of English queries. Right before the Christmas holiday, Google rolled out another Panda update. They officially called it a “refresh”, impacting 1.3% of English queries. Google released an update to control domain crowding/diversity deep in the SERPs (pages 2+).

Google released a series of updates, mostly targeted at low-quality links, including reciprocal links, link farms, and paid links. Jagger rolled out in at least 3 stages, from roughly September to November of 2005, with the greatest impact occurring in October. Although not a traditional algorithm update, Google started allowing the same domain to appear multiple times on a SERP. Previously, domains were limited to 1-2 listings, or 1 listing with indented results. Responding to competition by major social sites, including Facebook and Twitter, Google launched the +1 button . Clicking [+1] allowed users to influence search results within their social circle, across both organic and paid results.

Algorithm tracking tools and webmaster chatter showed heavy activity, but Google did not confirm an update. MozCast showed very high temperatures over a 3-day period, peaking on May 23. Ranking trackers and webmaster chatter registered a week of heavy flux (MozCast peaked at 95°F on July 16) that was later dubbed the “Maverick” update by the search community.

Although “Places” pages were rolled out in September of 2009, they were originally only a part of Google Maps. Google rolled out the Panda update to all English queries worldwide (not limited to English-speaking countries). New signals were also integrated, including data about sites users blocked via the SERPs directly or the Chrome browser.

Google, Yahoo and Microsoft jointly announced support for a consolidated approach to structured data. They also created a number of new “schemas”, in an apparent bid to move toward even richer search results. Specific details of what changed were unclear, but some sites reported large-scale losses. Google announced 30 changes over the previous month, including image search landing-page quality detection, more relevant site-links, more rich snippets, and related-query improvements. The line between an “algo update” and a “feature” got a bit more blurred.

Big Daddy changed the way Google handled URL canonicalization, redirects (301/302) and other technical issues. There were stirrings about an update in December, along with some reports of major ranking changes in November, but Google reported no major changes. Google released a preview of a massive infrastructure change, designed to speed crawling, expand the index, and integrate indexation and ranking in nearly real-time.

This seemed to happen after the new code rolled out, and may have taken as long as two weeks. Post-Penguin activity had one final peak on October 6th (116°), but it is unclear whether this was Penguin or a new update. Multiple Google trackers showed massive flux around December 14-15, including a rare MozCast temperature of 109°F. Webmaster chatter was heavy as well, but Google did not confirm an update. After testing longer search snippets for over two years, Google increased them across a large number of results.

Google Allo was a mobile instant messaging app developed for Android and iOS to exchange messages, images, files, and videos. YouTube – Video service that allows users to freely upload videos and view others videos. Google Toolbar – For Microsoft Windows Internet Explorer and Firefox users. Google Toolbar add-on enables users using these browsers to have access to Google search and other Google features any time the browser is open.