I found some (live) webcams that may interest some of you (and please don't post comments like 'I already know them':
Port Everglades Inlet cam:
http://southeastflorida.com/inletcam/
Sound has been added a little while ago and is on 24/7 so you can enjoy the ship horns. Also the Allure/Oasis of the Seas arrive in PE in every weekend. Saterday is Oasis of the Seas, Sunday is Allure of the Seas.
Port Canaveral cam:
http://www.portcanaveral.com/webcam.htm
This cam does not include sound but the Freedom of the Seas and the new ships of Disney Cruise Line comes to this port.
Panama Canal webcam:
http://www.pancanal.com/eng/photo/camera-java.html
Shows live images of all the locks of the Panama Canal and the building sites. This site is for the ones who are interested in cargo ships. Cruiseships also come here sometimes.
Meyer Werft webcam:
http://www.meyerwerft.com/page.asp?lang=e&main=2&subs=0&did=826
Watch the newest ships getting built. AIDAsol and Celebrity Silhouette are now in vision. The images are weekly updated.
Willemstad webcam:
http://www.liveincuracao.com/livewebcams/
Here, on the Caribbean island of Curaçao, is a hot place for cruiseships. 2, maybe 3 cruisehips comes a week. Also some oil tankers and cargo ships come here.
If you know more good webcams, please post them.