Link to website that lists places in West Prussia with links to civil and church records available. http://www.westpreussen.de/cms/ct/standesamtsregister.php
Civil Registration for Eastern Provinces can be found on Ancestry.com "Eastern Prussian Provinces"
Stolpe Index: https://www.stolp.de/globalindex.html?order_by=&sort=asc&per_page=10&Name=Kopischke&Vornamen=Johann&Ort=&JahrVon=&JahrBis=
Zachodnio has civil registration indexes for many places in West Prussia: https://ztgpomerania.pl Click on indexed records and it will take you to this link: https://serwer1735115.home.pl/wyszukiwarka/
Civil Registration documents scanned in Koszalin archives: http://www.skany.koszalin.ap.gov.pl/27/
GenBasia: http://metryki.genbaza.pl/genbaza,list,253455,1
The "Poznan Project" has some records from Westpreussen [particularly Kreis Flatow]: http://poznan-project.psnc.pl/search.php
Records scanned in Koszalin: http://www.skany.koszalin.ap.gov.pl/26/
Records scanned in Koszalin Branch archive in Slupsk: http://www.skany.koszalin.ap.gov.pl/27/
Civil records scanned in Koszalin [Branch Slupsk] archives for Prechlau: http://www.skany.koszalin.ap.gov.pl/27/327/
New records added to PTG Database can be found at this link: http://www.ptg.gda.pl/index.php/default/lang/en-utf-8/