diff --git a/src/comparison/data/graphdb.md b/src/comparison/data/graphdb.md
index dfdbddb..538df4f 100644
--- a/src/comparison/data/graphdb.md
+++ b/src/comparison/data/graphdb.md
@@ -24,6 +24,10 @@
 | {index}`Virtuoso <Graph Database; Virtuoso>` | | | | 
 ```
 
+## Oxigraph
+
+- [https://github.com/oxigraph/oxrdflib](oxrdflib) - integration with {index}`rdflib`
+
 ## TODO
 
 - What in the heck is {index}`SOLID` using?
\ No newline at end of file
diff --git a/src/comparison/index.md b/src/comparison/index.md
index 227f910..437decf 100644
--- a/src/comparison/index.md
+++ b/src/comparison/index.md
@@ -32,6 +32,16 @@ data/index
 - Repute.Social
 - LinkedTrust.us
 - https://ganarchy.github.io/ - pull request-less git
+- semantic hashing
+	- https://iscc.codes/#the-iscc-is - multipart content identifiers from [bengo](https://mastodon.social/@bengo/111615921362561222)
+	- [simhash](https://en.wikipedia.org/wiki/SimHash) - similarity-sensitive hashes, also from [bengo](https://mastodon.social/@bengo/111616070992289762)
+	- [hypervectors](https://techhub.social/@hosford42/111615949285396537)
+- Scholcomm-adjacent stuff
+	- from [Patrick Hochstenbach](https://openbiblio.social/@hochstenbach): [Event Notifications](https://www.eventnotifications.net/) - [paper](https://journal.code4lib.org/articles/17823), [spec](https://mellonscholarlycommunication.github.io/spec-orchestrator/)
+- [rdf/js](http://rdf.js.org/data-model-spec/) - ORM for RDF
+- [Willow Protocol](https://willowprotocol.org/)
+- [neurobagel](https://neurobagel.org/overview/)
+- [ActivityPods](https://github.com/assemblee-virtuelle/activitypods) - SOLID and ActivityPub
 
 ## See also
 
diff --git a/src/comparison/ld/rdf.md b/src/comparison/ld/rdf.md
index 076c824..ef7ecc1 100644
--- a/src/comparison/ld/rdf.md
+++ b/src/comparison/ld/rdf.md
@@ -16,12 +16,28 @@ We depart from that vision, instead favoring radical vernacularism {cite}`saunde
 Return here re: RDF canonicalization and IPFS https://github.com/multiformats/multicodec/pull/261
 ```
 
+### RDF Basics
+
+#### RDF Datasets
+
+```{todo}
+Document RDF Datasets!
+
+- https://www.w3.org/TR/rdf11-concepts/#dfn-rdf-dataset
+- https://www.w3.org/TR/rdf11-datasets/
+```
+
+
+## Formats
+
 ```{index} JSON-LD
 ```
 ### JSON-LD
 
 
-
+```{todo}
+Document JSON-LD :)
+```
 
 ## Challenges
 
@@ -475,6 +491,7 @@ I'll just leave this example of encoding the pixels in one RGB video frame as a
 - [Turtle](https://www.w3.org/TR/rdf12-turtle/)
 - [N-ary relations in RDF](https://www.w3.org/TR/swbp-n-aryRelations/)
 - [RDF 1.1 Semantics](https://www.w3.org/TR/rdf11-mt/)
+- [SPARQL Entailment](https://www.w3.org/TR/sparql11-entailment/)
 
 ### Libraries
 
@@ -493,6 +510,8 @@ I'll just leave this example of encoding the pixels in one RGB video frame as a
 - [CORAL](https://github.com/jmchandonia/CORAL)
 - [SEMTAB](https://www.cs.ox.ac.uk/isg/challenges/sem-tab/) - competition for mapping tabular data to RDF
 - [SciSPARQL](https://www.ceur-ws.org/Vol-1272/paper_22.pdf) - an extension of SPARQL to include arrays.
+- [MAGiQ](https://www.vldb.org/pvldb/vol11/p1978-jamour.pdf) - using sparse arrays for RDF graphs
+  - [GSmart](https://arxiv.org/abs/2106.14038) (same thing)
 
 ### Example Datasets
 
diff --git a/src/comparison/ld/solid.md b/src/comparison/ld/solid.md
index b26f8ce..70c66b3 100644
--- a/src/comparison/ld/solid.md
+++ b/src/comparison/ld/solid.md
@@ -1 +1,6 @@
 # SOLID
+
+## (stub to not lose the reference)
+
+- footnote cite: https://fosstodon.org/@happyborg/111725564636879777
+- p2p in SOLID found at last! https://safenetforum.org/t/devcon-talk-supercharging-the-safe-network-with-project-solid/23081?u=happybeing