diff --git a/rdf.md b/rdf.md
index 16638932f..42f5e85d6 100644
--- a/rdf.md
+++ b/rdf.md
@@ -8,7 +8,8 @@
 - I should ask [[s.-s.]] about it.
 - See also: [[turtle]], [[semantic triples]].
 
-## /[[2020-12-26]]
+
+## [[2020-12-26]]
 
 - I started a pomodoro of this but [[procrastination]] came up, interesting -- it's not like I'm not interested in this, but it just tends to happen I don't *get* to it because I'm busy with work and other things, so I ended up associating it with a frustrated feeling? Unsure. It could also be I have a fear of it being *precisely* the Agora, what that would mean. I should be elated if that happened, but on some level perhaps.
   - [[the agora is a social network built by the people for the people]] feels like something that I wanted to write, so no regrets.
@@ -25,6 +26,24 @@
 		- It sounds like RDF allows us to run a fully distributed [[graph]] / [[hypergraph]] over the internet.
 		- Why has it not "taken over"?
 		- What would "take over" mean?
+  Related tools
+		- [[4store]] (triple store).
+		- [[outdated-ARC RDF Store]] (triple store). Directly usable from PHP
+		- [[AllegroGraph RDF Store]] (triple store programming environment reasoner development environment rdfs reasoner). Directly usable from Java LISP Python Prolog C Ruby Perl
+		- [[Apache Jena]] (triple store programming environment reasoner rule reasoner owl reasoner rdfs reasoner parser). Directly usable from Java
+		- [[Dojo.data]] (triple store programming environment). Directly usable from Javascript
+		- [[FRED]] (rdf generator tagging knowledge graph extractor).
+		- [[Mobi]] (programming environment development environment). Directly usable from Java Javascript
+		- [[Mulgara Semantic Store]] (triple store). Directly usable from Java
+		- [[OpenLink Virtuoso]] (triple store reasoner rdf generator sparql endpoint owl reasoner rdfs reasoner rdb2rdf). Directly usable from C C++ Python PHP Java Javascript ActionScript Tcl Perl Ruby Obj-C
+		- [[Oracle Spatial and Graph 19c]] (triple store reasoner owl reasoner). Directly usable from Java
+		- [[RDFLib]] (triple store programming environment). Directly usable from Python
+		- [[RDFox]] (triple store reasoner owl reasoner rdfs reasoner rule reasoner). Directly usable from C++ Java
+		- [[Redland RDF Application Framework]] (programming environment). Directly usable from C C-sharp Python Obj-C PHP Java Tcl Ruby Perl
+		- [[Altova's SemanticWorks]] (editor development environment).
+		- [[Sesame]] (triple store programming environment reasoner rdfs reasoner parser). Directly usable from Java Python PHP
+		- [[Talis Platform]] (triple store sparql endpoint).
+		- [[XMP (ISO 16684)]] (editor development environment).
 - [[reading]] https://en.wikipedia.org/wiki/Resource_Description_Framework
   - [[1.0]] was published as a standard in [[1999]], [[1.1]] in [[2014]].
 	- "The RDF data model is similar to classical conceptual modeling approaches (such as [[entity–relationship diagrams]] or [[class diagrams]]). It is based on the idea of making statements about resources (in particular web resources) in expressions of the form subject–predicate–object, known as triples. The subject denotes the resource, and the predicate denotes traits or aspects of the resource, and expresses a relationship between the subject and the object. "
@@ -44,5 +63,4 @@
 [procrastination]: procrastination "Procrastination"
 [the agora is a social network built by the people for the people]: the-agora-is-a-social-network-built-by-the-people-for-the-people "The Agora Is a Social Network Built by the People for the People"
 [action]: action "Action"
-[graph]: graph "Graph"
 [//end]: # "Autogenerated link references"
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