- Mik's blog about Robbiati, Stern and shining espresso makers: http://www.giordanorobbiati.com/
- Caffezine : http://caffezine.com/coffee-directory/#2c1
- Cafeteras de Joan : http://www.joan.4mes1.org/
- Ursula's museum : http://www.kaffeemaschine.de/start.html
- Ugo's collection : http://caffettiera.altervista.org/collezione.php
- Andrea's collection : http://www.caffettiereitaliane.com/
- Francesco's site (the most comprehensive site in the world, if not of the solar system and not even of the entire universe, dedicated to the lever coffee machines for home use produced by the 50s to the present day) : http://www.francescoceccarelli.eu/index_eng.htm