Google's 2-step verification requires you to have 2 things in order to login: something you know (your password) and something you possess (your cellphone). Google will text you a 6-digit code that you will have to enter as part of the login process.
Google has recently introduced a scientific calculator on the results page -- no app needed. To get it, search for "scientific calculator" or a calculation such as "19/74". In Google Chrome, you can even trigger it by searching by voice.
Public.resource.org, a great source for free caselaw and gov docs, has no search engine. Browsing the site is not easy and intuitive. You can, however, use Google to search for cases and documents in public.resource.org using Google's site: limit.
If you search Google using the Google Chrome browser you can speak your queries by clicking on the microphone icon in the search box. (Obviously your PC will need either an internal or external microphone for this to work.)
Special characters in Google: the asterisk (*) is a placeholder in quotations; Boolean NOT is the minus sign (-); the tilde searches synonyms; ellipsis is for number ranges; mathematical symbols can be used in the calculator/converter.
Last year Google went to a full encrypted connection for Web search to foil online snoops. Many Websites are going that route, using https. The EFF has produced a browser extension called HTTPS Everywhere which automatically puts you in encrypted mode.
