636a282f845f2264d0a8d767f039b573f70d22cb
max
  Wed May 26 05:30:44 2021 -0700
clarifying license/index.html a little more, refs #27614

diff --git src/hg/htdocs/license/index.html src/hg/htdocs/license/index.html
index f7afca9..f43ce4c 100755
--- src/hg/htdocs/license/index.html
+++ src/hg/htdocs/license/index.html
@@ -1,87 +1,105 @@
 <!DOCTYPE html>
 <!--#set var="TITLE" value="Genome Browser Licensing" -->
 <!--#set var="ROOT" value=".." -->
 
 <!-- Relative paths to support mirror sites with non-standard GB docs install -->
 <!--#include virtual="$ROOT/inc/gbPageStart.html" -->
 
-<h1>Obtaining permission to share a graphic produced by the Genome Browser</h1>
+<h1>Graphics: No permission is needed to reproduce a graphic produced by the Genome Browser</h1>
 <p>Permission is granted for reuse of all graphics produced
 by the UCSC Genome Browser website. There is no need to contact us to get permission. If your 
 publisher, notably Elsevier, insists on getting approval, please direct them to this webpage. 
 However, when you use the UCSC Genome Browser in your work, please cite one of our 
 <a href="../goldenPath/pubs.html">publications</a>.</p>
+<br>
+
+<h1>Data: No license is needed for the data files and database tables used by the Genome Browser</h1>
 <p>
-The data displayed by the browser is freely available for both public and commercial use with a few
-exceptions. The README.txt file in the download directory of each assembly shows the use
-restrictions pertaining to that data set. Additional details can be found in the track 
+As far as the UCSC Genome Browser is concerned, the raw table data and binary
+files used to create the graphics by the browser is freely available for both
+public and commercial use.  The README.txt file in the download directory of
+each assembly shows the use original restrictions pertaining to the genome
+sequence itself by the original authors. Conditions for individual annotation
+tracks, which depend on the original authors, can be found in the track
 description pages.</p> 
 <br>
 
-<h1>Obtaining a Commercial License for the Genome Browser</h1>
-<p> When using applications from the Genome Browser tool suite, including LiftOver and BLAT, or
+<h1>Software: Commercial use of the Genome Browser software and related tools available from our website and source code repository</h1>
+<p>As written above, when using applications from the Genome Browser tool suite, including LiftOver and BLAT, or
 data from the UCSC Genome Browser database in a research work that will be published in a journal
 or on the Internet, there is no need to get permission from us. 
 When you use the UCSC Genome Browser in your work, 
 please cite one of our <a href="../goldenPath/pubs.html">publications</a>.
 </p>
 <p>
 The Genome Browser binaries and source code are freely available for academic, nonprofit, and 
 personal use. A license is required for commercial download and installation of most Genome Browser 
-binaries and source code, with the exception of the items in the section below.
+binaries and source code, with the exception of the items in the section below, notably BLAT.
 To purchase a commercial license for Genome Browser source code, LiftOver, GBiB, or GBiC, please 
 visit the <a href="https://genome-store.ucsc.edu">Genome Browser store</a>. </p>
 
 <p>
 If you would like to purchase more than 20 copies of the Genome Browser source code, please follow 
 these instructions: 
 <ol>
   <li> 
   Read and sign the <A HREF="gbLicense2020.pdf" target=_blank>licensing agreement</a>.</li>
   <li> 
   Email a signed copy of the license agreement to the UCSC Office for IP Management 
   (<A HREF="mailto:&#103;&#101;&#110;&#111;&#109;&#101;&#98;&#114;&#111;w&#115;&#101;r&#64;&#117;&#99;sc.
 &#101;&#100;&#117;">&#103;&#101;&#110;&#111;&#109;&#101;&#98;&#114;&#111;w&#115;&#101;r&#64;&#117;&#99;sc.
 &#101;&#100;&#117;</A>).
 <!-- above address is genomebrowser at ucsc.edu -->
   <li> Follow the instructions in the license agreement for submitting the signed original copy and 
   payment.</li>
   <li> After your license application has been processed, 
   you will receive instructions for downloading the
   browser software and data.</li>
 </ol></p> 
 <p> 
 Genome Browser licensing questions should be directed to 
 <a href="mailto:&#103;&#101;&#110;&#111;&#109;&#101;&#45;ww&#119;&#64;&#115;o&#101;.&#117;c&#115;&#99;.&#101;&#100;&#117;">&#103;&#101;&#110;&#111;&#109;&#101;&#45;ww&#119;&#64;&#115;o&#101;.&#117;c&#115;&#99;.&#101;&#100;&#117;</a>.  
 <!-- above address is genome-www at soe.ucsc.edu --> 
 For information about commercial licensing of the Blat and In-Silico PCR tools, see the 
 <a href="http://www.kentinformatics.com" target=_blank>Kent Informatics</a> website or contact 
 <a href="mailto:&#107;&#101;&#110;t&#64;&#115;&#111;&#101;.&#117;&#99;&#115;c.&#101;&#100;u">&#107;&#101;&#110;t&#64;&#115;&#111;&#101;.&#117;&#99;&#115;c.&#101;&#100;u</a>.</p>
 <!-- above address is kent at soe.ucsc.edu --> 
 <br>
-<h1>Tools and directories freely available for all uses</h1>
+<h1>Software: Tools and directories freely available for all uses</h1>
 <p>
-The following directories are available without license for all uses, academic, 
+The following directories are available without a license for all uses, academic, 
 non-profit, and commercial: </p>
 <ul>
   <li>
-  kent/src/utils (includes big* tools)</li>
+  kent/src/utils (includes big* tools and C libraries, for reading and writing bigBed, bigWig and similar files)</li>
   <li>
   kent/src/lib</li>
   <li>
   kent/src/inc</li>
   <li>
-  kent/src/tagStorm</li>
+  kent/src/tagStorm - tools and libraries for reading and writing hierarchical meta data files</li>
   <li>
-  kent/src/parasol</li>
+  kent/src/parasol - a very fast cluster job scheduler</li>
   <li>
-  kent/src/htslib</li>
+  kent/src/htslib - a third party library that we only distribute for convenience</li>
   <li>
   kent/src/hg/autoSql</li>
   <li>
   kent/src/hg/autoXml</li>
 </ul>
+
+See the LICENSE file in the top level of our source code for a listing of licenses and directories that they apply to: 
+<a href="https://github.com/ucscGenomeBrowser/kent/blob/master/LICENSE">https://github.com/ucscGenomeBrowser/kent/blob/master/LICENSE</a>.
+
 <p>When you use the UCSC Genome Browser in your work, please cite one of 
 our <a href="../goldenPath/pubs.html">publications</a>.</p>
 
+<br>
+<h1>Acknowledgements</h1>
+<p>
+This software includes software made by open-source projects:
+<ul>
+    <li> htslib, see <a href="https://doi.org/10.1093/gigascience/giab007" target=_blank>Bonfield et al, 2021</a>: Copyright (C) 2012-2020 Genome Research Ltd., see kent/src/htslib
+    <li> optimalLeaf, see <a href="https://www.ncbi.nlm.nih.gov/pubmed/12801867" target=_blank>Bar-Joseph et al. 2003</a>: released into the public domain by Ziv Bar-Joseph, see kent/src/optimalLeaf.
+</ul>
 <!--#include virtual="$ROOT/inc/gbPageEnd.html" -->