Britannica online is managed by Encyclopedia Britannica, with more than 230 years experience gathering and organizing information on thousands of subjects. The website provides limited services, like search results, for non-subscribers, while members have unlimited access to the full updated content of the 32-volume Encyclopaedia, to other publications and online services. By searching a word, users obtain also related websites, videos and media. Browsing possibilities are available for a world atlas, an A-Z index, selected topics through history. Also provided are the Merriam-Webster, a free online English dictionary with definitions, pronunciation, synonyms, etc., as well as a free e-mail newsletter containing links to Britannica articles and multimedia features. Beside its many international versions, Original Sources is available by site license to colleges, universities and libraries worldwide with fully searchable primary documents and is accessible through easy-to-navigate subject headings. The interaction with the website is facilitated by the Britannica Blog (with related forum), the RSS newsfeeds subscription and many dynamic images in the home page, somehow increasing the typical information overload. Among the recently introduced features, there are the new kids applications for iPhone, iPod and iPad.