Did you hear? Google’s launching a new, upgraded version of its search engine soon. Google promises that the new search tool (codename “Caffeine”) will improve the speed, accuracy, size, and comprehensiveness of Google search.

In the new infrastructure so far... it looks to be that there is:

 
• An increased weighting on domain authority & some authoritative tag type pages ranking (like Technorati tag pages + Facebook tag pages), as well as pages on sites like Scribd ranking for some long tail queries based mostly on domain authority and sorta spammy on page text


• Perhaps slightly more weight on exact match domain names


• Perhaps a bit better understanding of related words / synonyms


• Tuning down some of the exposure for video & some universal search results

Following is taken directly from Google's own Official Google Webmaster Central Blog

To build a great web search engine, you need to:

1. Crawl a large chunk of the web.
2. Index the resulting pages and compute how reputable those pages are.
3. Rank and return the most relevant pages for users' queries as quickly as possible.

For the last several months, a large team of Google programmers  has been working on a secret project: a next-generation architecture for Google's web search.

It's the first step in a process that will let us push the envelope on size, indexing speed, accuracy, comprehensiveness and other dimensions.

The new infrastructure sits "under the hood" of Google's search engine, which means that most users won't notice a difference in search results. But web developers and power searchers might notice a few differences, so we're opening up a web developer preview to collect feedback.

Conclusion:

New Google is FAST: It often doubled the speed of Google classic.

 

New Google relies more on keywords: SEO professionals, your job just got a lot harder.

 

The algorithm’s definitely different. It has more reliance on keyword strings to produce better results.

 

Search is moving into real-time: Being able to get info on breaking events is clearly a priority for Google and Bing. With both Twitter and Facebook launching real-time search engines, they needed to respond.

 

It’s partially a response to Bing: This new search has a focus on increasing speed, relevancy, accuracy, and the index volume, things that Microsoft really hit on when it released Bing.

 

It feels as if Google “Caffeine” is meant to shore up any deficiencies it may have when compared to Microsoft’s offering, though it’s been in the works long before Bing launched. For

end users this will mean that Google will only get better as features are implemented and developed.

The end result is a better search experience for the user. Competition really does breed innovation.

For webmasters this will mean learning a whole new area of SEO!

You can learn more about Google Caffeine via the following:

Mashables View On Google Caffeine

SEO Book: "The ROI on effective SEO campaigns is simply unbelievable, and Google is going to do everything in their power to DIMINISH the ROI of algorithmically focused optimization efforts."

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