diff --git a/pages/resources/knowledge.md b/pages/resources/knowledge.md
index 81a77c235..e9ae955f2 100644
--- a/pages/resources/knowledge.md
+++ b/pages/resources/knowledge.md
@@ -6,4 +6,4 @@ To add a resource to this list, see [suggest a link](index.md#suggest-a-link).
 | Name | Description | Scope |
 |---|---|---|
 | [ECS Knowledge Base](https://knowledge.electrochem.org/) | knowledge base of the Electrochemical Society (discontinued, kept for reference — some links may be broken) | general electrochemistry |
-| [ELCHI — Electrochemistry and History](https://elchi.eu/) | collection of articles on the history of electrochemistry and its protagonists | history |
+| [ELCHI — History of Electrochemistry](https://elchi.eu/) | collection of historical articles on electrochemistry and information about its protagonists | history |
diff --git a/pages/resources/tools.md b/pages/resources/tools.md
index d2f1d7048..4fa713d12 100644
--- a/pages/resources/tools.md
+++ b/pages/resources/tools.md
@@ -31,6 +31,7 @@ To add a project to this list, see [suggest a link](index.md#suggest-a-link).
 | Name | Scope / formats | Reference |
 |---|---|---|
 | [ElectroKitty](https://github.com/RedrumKid/ElectroKitty) | electrochemical simulator; fits reaction mechanisms and kinetic parameters to voltammograms | [DOI](https://doi.org/10.1021/acselectrochem.4c00218) |
+| [frumkin](https://github.com/lucasdekam/frumkin) | modeling of electric double layers with modified Poisson–Boltzmann theory; comparison with experimental capacitance data | |
 
 ## Databases and data platforms