Google has rolled out an instant search mode that will display the top 10 search results as you type.

This is probably going to cause some changes in the way people use Google.  If you see large shifts in your website traffic patterns in the coming days, this could be the main reason.

Since the user can see the results as she types in the words, instead of scanning through the search engine result page (SERP) after each search, the user is more likely to look at the top 3-4 results and then refine the search until she finds what she wants.

Even the Google Adword impressions are likely to be affected.

More on this later.