OMNIA does not use cookies, nor stores any information about users. However, some pages on this site include Google Adsense advertisements. Google do monitor users and use cookies. According to Google:

All basic content relating to heritage and culture is drawn from Europeana under a public use licence. Images and other media are displayed only in accordance with rights associated with them. Suggestions drawn from the Digital Public Library of America are extracted under the same principles. The biographical and 'In This Year' sections are populated using data drawn from Wikipedia and as such use public content. Maps used are generally public domain and accredited where appropriate.