Lehmann's address books, Vienna

An Austrian friend told me about this database where you can look in address books from Vienna from 1859-1942. http://www.digital.wienbibliothek.at/periodical/titleinfo/5311.

I believe the website is new since last year, so thought I would post it here in case all of you haven't heard of it. I find it quite amazing frankly to be able to see the addresses where my ancestors and relatives lived in Vienna. Unfortunately they don't seem to have google street view for Vienna yet, but maybe that's coming soon.