Publishing technology company Zinio, founded in 2000, was the precursor to all digital magazine formats. Now its iPad app lets you view thousands of titles -- BusinessWeek,PC Magazine and Outside to name a few -- which are transformed into PDF-like replicas on the iPad. Once users register for an account, they can select a free magazine subscription. The shop button allows users to browse Zinio's selection of magazines and purchase back issues, single issues or subscriptions. Magazine pages and accompanying slideshows and videos are shown in gorgeous bright colors, and users can choose to read long articles in a text-only format. The app links seamlessly to the web from articles and advertisements without opening a clunky browser. --Written by Olivia Oran in New York. >To follow the writer on Twitter, go to http://twitter.com/Ozoran. >To submit a news tip, send an email to: email@example.com.