diff --git a/research.mdwn b/research.mdwn
index 1fc938e0ff7c371d18098bc8a3206f717d8fe7ba..e871cc2c1dc0af697a43f1561b693bcad74ab8dc 100644
--- a/research.mdwn
+++ b/research.mdwn
@@ -9,6 +9,7 @@
 
 ## Unsorted local stash
 
+* ebook 'playlist' with copy capabilities.
 * [Wikidata](https://www.wikidata.org).
 * OsmAnd and GPX tracks.
 * [Swagger Specification](http://swagger.io/specification/).
diff --git a/services.mdwn b/services.mdwn
index 60c56e346c74830f70d2b08a1ac83dc18e3f0dd2..9d3db53297670b1b72e540b4ba2dc6939a977fa8 100644
--- a/services.mdwn
+++ b/services.mdwn
@@ -286,6 +286,7 @@ Static:
 Other
 -----
 
+* [Blockstack, building the decentralized internet](https://blockstack.org/).
 * [MonitoringScape](https://bigpanda.io/monitoringscape/): guide to the new, exciting world of modern monitoring.
 * [Derefer Script PHP](http://www.naden.de/blog/derefer-script).
 * [idno/Known · GitHub](https://github.com/idno/Known).