In addition to the arms on different buildings in Amsterdam, I also came over a box of cards with coats of arms in antiquarian shop, the Antiquariaat A. Kok & Zn. in Oude Hoogstraat. The families in question are not necessarily from Amsterdam - some of them might not be Dutch for all I know - but I found the cards there!
I plan to publish more heraldry blog articles in the future, hence "Heraldry, Part I" in parenthesis.
Also the arms of Amsterdam. Found at the Central Station.
Rijksmuseum during my stay in Amsterdam. I don't have more details on this one, though.
The arms of the Dutch East India Company and of the Town of Batavia (Jeronimus Becx) in the Rijksmuseum.
Stained glass with heraldry in the Rijksmuseum.