Links to websites where I found the records of my lost relatives and other interesting information:

http://www.yadvashem.org/

http://www.jewishgen.org/jgff/

http://www.jewishgen.org/databases/Hungary/

http://www.jewishgen.org/

http://zsido.hu/guide/guide_has.htm

http://www.hdke.hu/

http://www.mazsihisz.com/olvaso.phtml?pubid=26

http://www.zsido.hu/tortenelem/holocaust/chapter4.htm

http://www.amazon.com/s/ref=nb_ss_gw/102-0920454-6502541?url=search-alias%3Daps&field-keywords=holocaust+in+hungary&Go.x=11&Go.y=11

http://www.ushmm.org/uia-cgi/uia_form?noframes=x&page_len=25&max_docs=all&db_name=archguide&query=list+of+hungarian+victims&pq=x

http://www.bpjewmus.hu/?page=tartalom&view=leveltar&id=leveltar_holocaust