Google announced early this week ten recent algorithm changes it's made these past few weeks. In Matt Cutts' post, the Google Distinguished Engineer shared how these recent algorithm changes will affect and improve search ranking and evaluation. Google gives a more in-depth look on its top recent algorithm improvements which includes improvement of quality snippets, ranking boost for official pages, and a higher visibility of rich snippets.

Here are some of the top algorithm changes listed by Matt Cutts:

Latest and Fresher Results: “As we announced just over a week ago, we’ve made a significant improvement to how we rank fresh content. This change impacts roughly 35 percent of total searches (around 6-10% of search results to a noticeable degree) and better determines the appropriate level of freshness for a given query.”

Official Page Detection: “We try hard to give our users the most relevant and authoritative results. With this change, we adjusted how we attempt to determine which pages are official. This will tend to rank official websites even higher in our ranking.”

Snippets with Content-Rich Pages Instead of Header/Menu Content: “This change helps us choose more relevant text to use in snippets. As we improve our understanding of web page structure, we are now more likely to pick text from the actual page content, and less likely to use text that is part of a header or menu.”

Better Page Titles in SERPs: “We look at a number of signals when generating a page’s title. One signal is the anchor text in links pointing to the page. We found that boilerplate links with duplicated anchor text are not as relevant, so we are putting less emphasis on these. The result is more relevant titles that are specific to the page’s content.”

Rich Snippets for Applications: ” We recently announced rich snippets for applications. This enables people who are searching for software applications to see details, like cost and user reviews, within their search results. This change extends the coverage of application rich snippets, so they will be available more often.”

Via Google Inside Search Blog