official website for information on vipassana meditation as taught by sn goenka
official website for the vipassana research institute and includes some videos and free publications
Very closely associated with vipassana research institute. pariyatti publishes and sells an excellent range of dhamma books and videos by vri (and others) relating to the work of sn goenka, as well as others.
Something you might be interested in ordering is 'the discourse summaries' by sn goenka.
If you require any additional information, feel free to ask.