diff --git a/gitbook/tools/wikipedia-list-of-registers/README.md b/gitbook/tools/wikipedia-list-of-registers/README.md
index ad5a49f1..ea97fd5f 100644
--- a/gitbook/tools/wikipedia-list-of-registers/README.md
+++ b/gitbook/tools/wikipedia-list-of-registers/README.md
@@ -6,7 +6,7 @@ description: Wikipedia list of official business registers around the world.
 
 ## URL
 
-[https://en.wikipedia.org/wiki/List\_of\_official\_business\_registers](https://en.wikipedia.org/wiki/List\_of\_official\_business\_registers)
+[https://en.wikipedia.org/wiki/List\_of\_official\_business\_registers](https://en.wikipedia.org/wiki/List_of_official_business_registers)
 
 ## Description
 
@@ -16,7 +16,7 @@ Some are free, while some give very basic details for free and require payment f
 
 The Wikipedia list of registers will help you to find an online register for a particular country.
 
-[OpenCorporates](https://bellingcat.gitbook.io/toolkit/more/all-tools/opencorporates) has unified many of the registers in a single database, so it may be better to use in some instances. 
+[OpenCorporates](https://bellingcat.gitbook.io/toolkit/more/all-tools/opencorporates) has unified many of the registers in a single database, so it may be better to use in some instances. It's worth checking their [data coverage page](https://knowledge.opencorporates.com/knowledge-base/overview/) to see which registers are currently online (i.e. live data is available via OpenCorporates), and which are not.
 
 ## Cost