diff --git a/pages/concepts.cryptoart.md b/pages/concepts.cryptoart.md
index 639f7dc..1558f42 100644
--- a/pages/concepts.cryptoart.md
+++ b/pages/concepts.cryptoart.md
@@ -16,7 +16,10 @@
 - https://superrare.co/
 - https://rarible.com/
 - https://foundation.app/
+- https://opensea.io/
 
+--------------
+- https://ethereumprice.org/gas/
 --------------
 
 - https://sci-hub.se/https://www.jstor.org/stable/4486233#
diff --git a/pages/escherfucker.intro.md b/pages/escherfucker.intro.md
deleted file mode 100644
index e62f0f6..0000000
--- a/pages/escherfucker.intro.md
+++ /dev/null
@@ -1 +0,0 @@
-Escher Fucker is an audio-visual group fascinated by an analog video signal and its collisions with digital enviroments. 
\ No newline at end of file