The National Library of the Jewish People (aka the Jewish National and University Library of Hebrew University in Jerusalem) has an online virtual exhibit that is not to be missed. Songs We Loved to Hear is a selection of 19 original recordings of Israeli hit songs produced before or shortly after the establishment of the State of Israel. To browse through a collection of over 1200 Jewish marriage contracts, the Ketubbot Digitization Project is your destination. In the Einstein’s section, check out a facsimile of his famous formula E=mc2 in his own handwriting.