Overview of Google, the infrastructure you can update your search

Google has announced that the opening of a new outcome of the testing infrastructure. You can www2.sandbox.google.com and comments on the differences of normal Web Search by clicking the "unfortunate" link at the bottom (you'll need the keyword "Caffeine" somewhere in the text box).

Google encourages this step one, drag the envelope size, indexing speed, accuracy, completeness and other dimensions, "says the new infrastructure that is under the bonnet of the Google search engine, that is to say that" most users will notice a difference in search results. However, developers of websites and perhaps looking for a Power some differences, so as to open a Web site Developer Preview loyalty back. "
Matt Cutts of Google refuses, however, that Google "does not seek major changes in classification of new infrastructure. Some classification changes, but this is not the main objective of infrastructure". Matt said that "most of the changes can be found in things like the heart of our profession of indexing."
What differences have on the spot, and you can see all the trends?