diff --git a/hash/apple2_flop_clcracked.xml b/hash/apple2_flop_clcracked.xml
index 569af0f4b8d..956907f2717 100644
--- a/hash/apple2_flop_clcracked.xml
+++ b/hash/apple2_flop_clcracked.xml
@@ -30599,7 +30599,7 @@ license:CC0-1.0
 		<info name="release" value="2020-03-22"/>
 		<!--
 		    Keyboard overlay available at:
-		    https://ia601404.us.archive.org/23/items/TheSeaVoyagers4amCrack/The%20Sea%20Voyagers%20%284am%20crack%29.txt
+		    https://archive.org/download/TheSeaVoyagers4amCrack/The%20Sea%20Voyagers%20%284am%20crack%29.txt
 		-->
 
 		<part name="flop1" interface="floppy_5_25">
diff --git a/src/lib/netlist/macro/nlm_ttl74xx_lib.cpp b/src/lib/netlist/macro/nlm_ttl74xx_lib.cpp
index 4e668766c04..2a1d844d512 100644
--- a/src/lib/netlist/macro/nlm_ttl74xx_lib.cpp
+++ b/src/lib/netlist/macro/nlm_ttl74xx_lib.cpp
@@ -1046,7 +1046,7 @@ static NETLIST_START(TTL_7474_DIP)
 //- Package: DIP
 //- NamingConvention: Naming conventions follow National Semiconductor datasheet
 //- FunctionTable:
-//-   https://ia800608.us.archive.org/5/items/bitsavers_nationaldaTTLDatabook_40452765/1976_National_TTL_Databook.pdf
+//-   https://archive.org/download/bitsavers_nationaldaTTLDatabook_40452765/1976_National_TTL_Databook.pdf
 //-
 //-         +---+---++---+----+
 //-         | D | G || Q | QQ |
@@ -1088,7 +1088,7 @@ static NETLIST_START(TTL_7475_DIP)
 //- Package: DIP
 //- NamingConvention: Naming conventions follow National Semiconductor datasheet
 //- FunctionTable:
-//-   https://ia800608.us.archive.org/5/items/bitsavers_nationaldaTTLDatabook_40452765/1976_National_TTL_Databook.pdf
+//-   https://archive.org/download/bitsavers_nationaldaTTLDatabook_40452765/1976_National_TTL_Databook.pdf
 //-
 //-         +---+---++---+----+
 //-         | D | G || Q | QQ |
@@ -2831,7 +2831,7 @@ static NETLIST_START(SN74LS629_DIP)
 //- Package: DIP
 //- NamingConvention: Naming conventions follow National Semiconductor datasheet
 //- FunctionTable:
-//-    https://ia800608.us.archive.org/5/items/bitsavers_nationaldaTTLDatabook_40452765/1976_National_TTL_Databook.pdf
+//-    https://archive.org/download/bitsavers_nationaldaTTLDatabook_40452765/1976_National_TTL_Databook.pdf
 //-
 static NETLIST_START(TTL_9310_DIP)
 {
diff --git a/src/mame/taito/buggychl.cpp b/src/mame/taito/buggychl.cpp
index 821800383f0..5044691fb7a 100644
--- a/src/mame/taito/buggychl.cpp
+++ b/src/mame/taito/buggychl.cpp
@@ -502,7 +502,7 @@ uint8_t buggychl_state::sound_status_sound_r()
  1  1  0  1  0  0  1  1  x  x  x  x  x  1  1  0   W  SCCON3
  1  1  0  1  0  0  1  1  x  x  x  x  x  1  1  1   W  SCCON4
  (the four ports above are probably for connecting to a bezel score display, almost identical to that of Grand Champion; see
- https://ia800501.us.archive.org/16/items/ArcadeGameManualGrandchampion/grandchampion.pdf pdf pages 54 and 55)
+ https://archive.org/download/ArcadeGameManualGrandchampion/grandchampion.pdf pdf pages 54 and 55)
  1  1  0  1  0  1  0  0  x  x  x  x  x  x  *  *   RW  SEQRQ 74ls155 @ ic42
  1  1  0  1  0  1  0  0  x  x  x  x  x  x  0  0   W  Write to MCU in latch and set ic43.1  semaphore
  1  1  0  1  0  1  0  0  x  x  x  x  x  x  0  0   R  Read from MCU out latch and clear ic43.2 semaphore
diff --git a/src/mame/taito/grchamp.cpp b/src/mame/taito/grchamp.cpp
index bd33a013e35..88d1199d091 100644
--- a/src/mame/taito/grchamp.cpp
+++ b/src/mame/taito/grchamp.cpp
@@ -52,7 +52,7 @@
 
     -   The Speech Feature enhances the game play.
 
-    -   Schematics: https://ia800501.us.archive.org/16/items/ArcadeGameManualGrandchampion/grandchampion.pdf
+    -   Schematics: https://archive.org/download/ArcadeGameManualGrandchampion/grandchampion.pdf
 
 ***************************************************************************/
 
diff --git a/src/mame/taito/tnzs.cpp b/src/mame/taito/tnzs.cpp
index 39ec8575e67..63943f2e28a 100644
--- a/src/mame/taito/tnzs.cpp
+++ b/src/mame/taito/tnzs.cpp
@@ -26,7 +26,7 @@ PCBs:
 
 Seta#       Taito#s             CPUS    RxM2    ROM1    MCU?    Video RAM   PROMs   SETA X1 GFXROMs     QUADRATURE  ESD. PROT   Games                           Picture
 P0-022-A    K1100245A J1100108A 2xZ80B  512/256 512/256 8042    4x6116      Yes, 2  03      23c1000     uPD4701AC   3x X2-003*4 arkanoid2                       http://www.classicarcaderesource.com/RevengeOfDoh3.jpg
-P0-022-B    K1100234A J1100108A 2xZ80B  512/256 512/256 8042    4x6116      Yes, 2  03      27c512(A)   uPD4701AC   3x X2-003*4 plumppop                        https://ia904709.us.archive.org/2/items/plump-pop-pcb/IMG_3544.jpg
+P0-022-B    K1100234A J1100108A 2xZ80B  512/256 512/256 8042    4x6116      Yes, 2  03      27c512(A)   uPD4701AC   3x X2-003*4 plumppop                        https://archive.org/download/plump-pop-pcb/IMG_3544.jpg
 P0-025-A    K1100241A J1100107A 2xZ80B  512/256 512/256 8042    4x6116      Yes, 2  03      23c1000     N/A         3x X2-003   drtoppel,extermatn,chukatai(B)  http://arcade.ym2149.com/pcb/taito/drtoppel_pcb_partside.jpg
 P0-028-A    K1100416A J1100332A 2xZ80B  512/256 512/256 8042    4x6116      No      05,06   23c1000     N/A         3x X2-004   chukatai(B)                     http://i.ebayimg.com/images/g/AhoAAOSw-FZXj5A5/s-l1600.jpg
 P0-038A     M6100309A           3xZ80B  512/256 512/256 NONE    1x6164      No      05,06   23c1000     N/A         3x X2-003   kageki                          http://i.ebayimg.com/images/a/(KGrHqJ,!lwE6C8-G97lBOjOu9mwVw~~/s-l1600.jpg