"Here is a quick and handy search tip I learned today from Ana Hoffman's post on Google Plus. For those of you who are using Chrome browser this nifty tip will allow you to search for content on any website right from Chrome address bar. This means that you do not need to access the website to use its search engine to look for content hosted on it."
You can connect keyboard, USB hard drives as well as gaming controllers to your Android phone or tablet using a USB OTG adapter. Have a look on this tutorial.