data.md

@@ -2,6 +2,8 @@
 
 The CC capitalizes on many data sources. The following is an extensive list of resources that are worth considering in current and future versions of the CC. Inside each CC level, I list the resources in **alphabetical order**. Some resources may be repeated because some of them have different types of data. 
 
+I recommend visiting the [NAR Online Molecular Biology Database Collection](http://www.oxfordjournals.org/nar/database/c/#) and [OmicsTools](https://omictools.com/) to stay up-to-date with the literature.
+
 * [X] Already in the CC.
 * [ ] Not yet in the CC.
 
@@ -63,15 +65,23 @@ The CC capitalizes on many data sources. The following is an extensive list of r
 
 ### `C` Networks
 
-* [X] Chemical Entities of Biological Interest ([ChEBI]())
-* [X] MetaPhORS
-* [X] STRING
-* [X] InWEB
-* [X] Recon 1
-* [X] PathwayCommons
-* [X] Reactome
-* [X] KEGG
-
+* [X] Chemical Entities of Biological Interest (ChEBI) [[paper](https://academic.oup.com/nar/article/44/D1/D1214/2502583) [data](https://www.ebi.ac.uk/chebi/)]
+ * Chemical ontology of biological roles
+* [X] InWEB [[paper](https://dx.doi.org/10.1038%2Fnmeth.4083) [data](https://www.intomics.com/inbio/map.html)]
+ * Integrative protein interaction database
+* [X] KEGG [[paper](https://academic.oup.com/nar/article/44/D1/D457/2502600) [data](https://www.genome.jp/kegg/)]
+ * A standard pathway database
+* [X] MetaPhORS [[paper](https://academic.oup.com/nar/article/39/5/e32/2409505) [data](orthology.phylomedb.org/)]
+ * Orthology and paralogy relationships between genes
+* [X] PathwayCommons [[paper]() [data]()]
+ * Integrative interaction database, using pathway data
+* [X] Reactome [[paper]() [data]()]
+ * A standard pathway database
+* [X] Recon [[paper]() [data]()]
+ * Currently, we are using version 1 of Recon.
+* [X] STRING [[paper]() [data]()]
+ * Protein interaction database
+ * Includes physical and regulatory interactions
 
 ### `D` Cells