Germany

Compgen.de – German Genealogy
http://compgen.de/

Landesarchiv – Baden-Württemberg
http://www.auswanderer-bw.de/sixcms/detail.php?template=a_artikel&id=6441&sprache=de

Bremen Passenger Lists
http://www.passagierlisten.de/

German Script Tutorial
https://script.byu.edu/Pages/German/en/welcome.aspx

German Marylanders
http://www.germanmarylanders.org/genealogy

Many Roads – German Immigrants 1850’s to 1890’s
http://www.many-roads.com/2015/03/22/german-immigrants-1850s-through-1890s/

Open Library – A collection of over thirty thousand names of German, Swiss, Dutch, French and other immigrants in Pennsylvania from 1727-1776
https://openlibrary.org/works/OL906306W/A_collection_of_upwards_of_thirty_thousand_names_of_German_Swiss_Dutch_French_and_other_immigrants_i

German Emigration Records
http://www.genealoger.com/german/ger_emigration_records.htm

About Bremen in the world
http://www.die-maus-bremen.de/Datenbanken/auswanderer/index.php/?lang=de

Emigration from Southwest Germany (Click English on right toolbar)
http://www.auswanderer-bw.de/sixcms/detail.php?template=a_artikel&id=6591&

Bremen Passenger Lists (flag above right nav is option for English or Deutsch).
http://www.passagierlisten.de/

Archion
https://www.archion.de/ 

Archives Bas-Rhin France – Click on box I accept these conditions, then select one of the conditions.  You can try both options to see what you like best.  The second one is the one I used for finding my Untereiner family with the help of a Alsace-Lorraine Facebook member.
http://etat-civil.bas-rhin.fr/adeloch/index.php?refacces=

Archives Haut-Rhin France – I use google translate with this one.
http://www.archives.haut-rhin.fr/Services_Actes_Civils.aspx