Google has released a new experimental search feature—called preferred sites—that returns customised search results based on a list of sites you like. So, for example, setting Lifehacker as a preferred site at your Google preference page will increase the likelihood that a Lifehacker post will appear in the first page of search results when you search for something. According to Google Operating System, the feature isn’t available to all users (including this editor). If your account is one of the lucky ones, let’s hear how the feature works for you in the comments. (Photo via Google Operating System)