diff --git a/cc-by-sa.tex b/cc-by-sa.tex
index 7abbf8065d1e2b5367b276eaae9d5687c93e6cff..a8cfd688981f33bff19ff1686c9c053e900310ee 100644
--- a/cc-by-sa.tex
+++ b/cc-by-sa.tex
@@ -72,7 +72,7 @@ to have learned the following:
 
 % FIXME this list should be more aggressive, but material is not yet present
 
-\textbf{WARNING: As of November 2014 this part is brand new, and badly needs review, expansion, error correction, and more.}
+\textbf{WARNING: As of November 2014 this part is brand new, and badly needs review, referencing, expansion, error correction, and more.}
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -199,7 +199,7 @@ EFF Open Audio License (2001), LinuxTag Green OpenMusic License (2001;
 non-free options) and the QING Public License (2002). Additionally
 several copyleft licenses intended for hardware designs were proposed
 starting in the late 1990s if not sooner (the GPL was then and is now
-also commonly used for hardware designs, as is now CC-BY-SA).
+also commonly used for hardware designs, as is now CC-BY-SA).\footnote{See \url{http://gondwanaland.com/mlog/2012/01/10/open-hardware-licenses-history/}.}
 
 At the end of 2002 Creative Commons launched with 11 1.0 licenses
 and a public domain dedication. The 11 licenses consisted of every
@@ -244,8 +244,6 @@ which began to be implemented in member state law starting from
 
 \subsection{Aside on share-alike non-free therefore non-copylefts}
 
-%FIXME section needs footnotes
-
 Many licenses intended for use with non-software works include the
 ``share-alike'' aspect of copyleft: if adaptations are distributed,
 to comply with the license they must be offered under the same terms.
@@ -258,7 +256,8 @@ mixed private property/commons regimes, as opposed to the commons
 created by all free licenses, and protected by copyleft licenses. One
 reason non-free public licenses might be common outside software, but
 rare for software, is that software more obviously requires ongoing
-maintenance. Without control concentrated through copyright assignment
+maintenance.\footnote{For a slightly longer version of this argument, see \href{http://freebeer.fscons.org/freebeer-1.2.pdf#chapter.2}{Free Culture in Relation to Software
+Freedom}.} Without control concentrated through copyright assignment
 or highly asymmetric contributor license agreements, multi-contributor
 maintenance quickly creates an ``anticommons'' -- e.g., nobody has
 adequate rights to use commercially.
@@ -293,6 +292,7 @@ version 4.0 (2013).
 The remainder of this tutorial
 exclusively concerns the most widespread copyleft license intended
 for non-software works, Creative Commons Attribution-ShareAlike
+
 (CC-BY-SA). But, there are actually many CC-BY-SA licenses -- 5
 versions (6 if you count version 2.1, a bugfix for a few jurisdiction
 ``porting'' mistakes), ports to 60 jurisdictions -- 96 distinct
