Good post from Danny Sullivan breaking down what Google’s forthcoming Universal Search means in visual and descriptive terms.

In short, Google will be incorporating into the default search engine rankings page results from across it’s various search engines, e.g. video, images, books… This presents all kinds of challenges in terms of user interface, information overload and access to the nugget(s) of information you were searching for in the first place.

Web users have seen these changes coming in various guises for some time as Google has tweaked the interface in various markets. At different times I’ve seen images, maps, blog and news results dripped into the results page. The next evolution looks to make those tweaks live across the search engine.

It’s Google’s own version of the wider widgetisation of the web where different data sources are pulled in from across the web customised to the user’s individual needs and preferences.