diff --git a/quickmarks b/quickmarks
index a074a30..e517bcf 100644
--- a/quickmarks
+++ b/quickmarks
@@ -14,3 +14,6 @@ blast https://blast.ncbi.nlm.nih.gov/Blast.cgi
 ncbiblast https://blast.ncbi.nlm.nih.gov/Blast.cgi
 genewiz https://clims4.genewiz.com/RegisterAccount/Login?returnUrl=https://clims4.genewiz.com//CUSTOMERHOME/INDEX
 oligocalc http://biotools.nubic.northwestern.edu/OligoCalc.html
+tmcalc https://tmcalculator.neb.com/#!/main
+tm https://tmcalculator.neb.com/#!/main
+primerblast https://www.ncbi.nlm.nih.gov/tools/primer-blast/index.cgi