.
Archived copies of old websites
While the American Hungarian Federation's extensive webpages on the Revolution from its 50th anniversary in 2006 are stiill available at http://www.americanhungarianfederation.org/1956/publications.htm, they are also (hopefully) preserved for posterity via the Internet Archive's Wayback Machine (https://archive.org/details/gov.archives.arc.2049945).
Digitized ephemera
Primary sources online
Google?
search for "forradalom" at https://news.google.com/news/advanced_news_search?as_drrb=a yields over 62,000 results, and since the 60th anniversary is imminent at the time of this writing, nearly all of the top results are about 1956 (as opposed to other revolutions in other times and places).
