libraries.md

 # Chemical libraries
 
-The following is a list of chemical libraries that we like to use in virtual screening exercises.
+The following is a list of chemical libraries that we like to use in virtual screening exercises. This is only a small selection. The best way to browse compound collections is via [ZINC Subsets](http://zinc15.docking.org/substances/subsets/) and, especially, [ZINC Catalogs](http://zinc15.docking.org/catalogs/). ZINC assigns an `abbreviation` to each collection, and we stick with ZINC notation if possible.
 
 * In the SB&NB file-system, compound collections can be found in `/aloy/web_checker/libraries/`.
 * The `chemical_checker` [PostGreSQL database](database) contains the compound collections, too, in the `libraries` table.
 
-These are only a very small selection of compound collections. The best way to browse compound collections is via [ZINC Subsets](http://zinc15.docking.org/substances/subsets/) and, especially, [ZINC Catalogs](http://zinc15.docking.org/catalogs/). ZINC assigns an `abbreviation` to every collections, and we stick with this notation as long as the database is indeed present in ZINC.
-
 ## Exemplar collections
 
 These are popular and representative compound libraries that we offer as default search libraries in the [Chemical Checker similarity resource](http://www.chemicalchecker.org).
 
-* Approved Drugs `apd`: [https://www.drugbank.ca/](https://www.drugbank.ca/). Approved drugs according to DrugBank.
-* Experimental Drugs `exd`: [https://www.drugbank.ca/](https://www.drugbank.ca/). Experimental drugs according to DrugBank. We remove drugs that are considered to be approved.
+* Approved Drugs: `apd`: [molecules](). Approved drugs according to [DrugBank](https://www.drugbank.ca/).
+* Experimental Drugs `exd`: [molecules](). Experimental drugs according to [DrugBank](https://www.drugbank.ca/). We remove drugs that are considered to be approved.
 * Human Metabolites `hmbdb`: [http://www.hmdb.ca/](http://www.hmdb.ca/). Human metabolites available from the Human Metabolome Database.
 * Traditional Chinese Medicines `tcm`: [http://tcm.cmu.edu.tw/](http://tcm.cmu.edu.tw/). Traditional Chinese Medicines from TCM@Taiwan database. This is the world's largest collection of Chinese medicines.
 * LINCS Compounds `lincs`: [http://lincsportal.ccs.miami.edu/SmallMolecules/](http://lincsportal.ccs.miami.edu/SmallMolecules/). Compounds, mainly from the Broad Institute Library, related to the LINCS consortium.
@@ -23,7 +21,7 @@ These are popular and representative compound libraries that we offer as default
 
 ## Screening libraries
 
-There is a great number of chemogenomics databases that one may consider. I list here the ones selected in an important recent review on the matter: .
+There is a large number number of chemogenomics databases that one may consider. I list here the ones selected in an important recent review on the matter: .
 
 ## Natural product databases