The new system officially rolls out today for anyone using Google.com and searching in English. Not everyone will see it at first, but over the course of the next several days, Universal Search should be more, well, universal. A new navigational interface has also been unveiled for Google and is covered more in the companion piece to this article, Google's New Navigational Links: An Illustrated Guide.

The move potentially should be a huge boon for searchers, while search marketers who have paid attention to the importance of specialized or vertical search will see new opportunities. To fully explain the importance to both groups, I'm going to work step-by-step through the concept of vertical search engines, how they're often ignored by searchers and search marketers alike, then how Google is going to make this content more visible through Universal Search.

Get the full story at Search Engine Land