diff --git a/bookmarks.html b/bookmarks.html
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+++ b/bookmarks.html
@@ -1043,6 +1043,10 @@
 <DT><A HREF="https://github.com/janeczku/calibre-web">Calibre-Web</A>
 <DT><A HREF="https://cse.google.com/cse?cx=000661023013169144559:a1-kkiboeco">Custom Search Engine</A>
 <DT><A HREF="https://blog.chrisbonk.ca/2018/12/knowledge-is-power-exploring-over-1800.html?m=1">Exploring over 1,800 Calibre ebook servers</A>
+<DT><A HREF="https://z-lib.org/">Z-library</A>
+<DT><A HREF="https://isidore.co/aquinas/">St. Thomas Aquinas's Works in English</A>
+<DT><A HREF="https://sites.google.com/site/aquinasstudybible/home/">Patristic Bible Commentary</A>
+<DT><A HREF="https://libgen.is/">Library Genesis</A>
 </DL></p>
 <DT><H3>Magazines</H3>
 <DL><p>