Google has introduced a new feature called Google Search SSL Beta. Basically, you can now perform web searches using an SSL encryption by going to https://www.google.com . Google note that this beta functionality is only available to web searches and not (yet) to Maps, Images, Books and other Services. And to be double-sure you are browsing secure, Google has updated their famous Google search page to reflect this new beta period.
Hit up the Google KB Article here.