Historic German Postcards
The Ancestry.de site has about 1500 historic German postcards posted online, dated 1893 to 1963.
These cards come from Mary Martin Postcards in Maryville, Maryland. They can be searched by place - or you can browse by place, and find cards of interest. Keep in mind that this collection is made up of only 1500 cards, so chances are not very high of finding cards of your small ancestral village, but it’s worth a look.