This weekend, I met Gabriel Weinberg, an MIT grad living in the Philadelphia suburbs who created a search engine called DuckDuckGo. It’s a simple website that weeds out spam search results and promises not to save your search requests like Google does. Time magazine‚Äôs Techland blog featured the site just two weeks ago. What makes the search engine especially intriguing now is that its promoted features dovetail perfectly with a new book warning about the perils of sites like Google filtering the information you receive based on data it has collected from you. The Filter Bubble: What the Internet is Hiding from You, by Eli Pariser, former executive director of MoveOn.org, went on sale in May and is stirring a growing debate about how dominant Internet companies such as Google and Facebook are limiting your exposure to a diversity of ideas for the sake of selling ads that target you. More