diff --git a/README.md b/README.md
index fc4524b..9f912e9 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,39 @@
 # lib_materials
-Materials library provides new stone types, and attempts to define materials for existing nodes
+
+lib_materials is a massive collection of stone, dirt, sand, clay, liquid, and "grass" ground cover types.  A complete list can be found in the nodes.csv file, but be careful, as this file contains all the data necessary to load the node definitions.
+
+Please be patient, there are bugs, and other oddities, but otherwise, I thinks you'll be impressed.
+
+lib_materials includes code from default, valleys_c, ethereal, fluidity, buckets, and others.  Where included, those licenses apply.
+
+Special thanks to Gael de Sailly, initially as inspiration from Valleys mg, but for the .csv code contribution that makes this run more efficiently.
+
+Also, thanks to e7e7, for the biome dirts code generation.
+
+Many thanks to all the other code contributors, whose code guided or has been included in this mod.
+
+Included are the following mods and or games:    (in whole or in part)
+
+default (where appropriate)
+moreores
+moreblocks
+ethereal
+darkage
+xdecor
+rocks
+minerals
+cement
+real_minerals
+fluidity
+buckets
+vessels
+technic
+australia
+aoteara
+forest
+30biomes
+valleys_c
+finite_water
+
+Farlands
+Skytest