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— Free Software Foundation — Working together for free software

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</h1> <div id="content-core"> <p> We apologize for the inconvenience, but the page you were trying to access is not at this address. You can use the links below to help you find what you are looking for. </p> <p> If you are certain you have the correct web address but are encountering an error, please contact the <span> <a href="https://www.fsf.org/contact-info">Site Administration</a></span>. </p> <p> Thank you. </p> <!-- Offer search results for suggestions --> <h3>You might have been looking for&hellip;</h3> <dl> <dt class="contenttype-blog-entry"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Blog Entry" /> <a href="https://www.fsf.org/blogs/rms/richard-stallman-on-why-you-should-join-the-fsf" class="state-published">Richard Stallman on why you should join the FSF </a> <span class="discreet"> by rms, Dec 29, 2017 12:34 PM </span> </dt> <dd></dd> <dt class="contenttype-event"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Event" /> <a href="https://www.fsf.org/events/join-the-fsf-and-friends-in-updating-the-free-software-directory-1" class="state-published">Join the FSF and friends in updating the Free Software Directory</a> <span class="discreet"> by jgay, Sep 13, 2012 03:44 PM </span> </dt> <dd>Join us in improving the Free Software Directory</dd> <dt class="contenttype-news-item"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="News Item HTML" /> <a href="https://www.fsf.org/news/DRMLibraryAction.html" class="state-published">Join the FSF in calling on libraries to eliminate DRM</a> <span class="discreet"> by mattl, Feb 08, 2008 09:41 AM </span> </dt> <dd>Join the Free Software Foundation and DefectiveByDesign.org this Saturday (2/9/2008) at the Boston Public Library to demand the removal of Digital Restrictions ...</dd> <dt class="contenttype-document"> <a href="https://www.fsf.org/associate/index_html_bad" class="state-published">FSF associate membership</a> <span class="discreet"> by mattl, Aug 11, 2017 03:27 PM </span> </dt> <dd>When you join the FSF as an associate member, you join a society of ethical computer users who support essential freedoms for all computer users.</dd> <dt class="contenttype-event"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Event" /> <a href="https://www.fsf.org/events/join-us-for-a-general-irc-discussion-on-the-papers-selected-as-part-of-our-copilot-call-for-whitepapers" class="state-published">Join us for a general IRC discussion on the papers selected as part of our Copilot call for whitepapers</a> <span class="discreet"> by devinu, Feb 25, 2022 10:45 AM </span> </dt> <dd></dd> <dt class="contenttype-event"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Event" /> <a href="https://www.fsf.org/events/join-the-fsf-and-friends-in-updating-the-free-software-directory-3" class="state-published">Join the FSF and friends in updating the Free Software Directory</a> <span class="discreet"> by donaldr3, Oct 11, 2012 03:22 PM </span> </dt> <dd>Join the FSF and friends on Friday October 12th, from 2pm to 5pm EDT (18:00 to 21:00 UTC) to help improve the Free Software Directory by adding new entries and ...</dd> <dt class="contenttype-blog-entry"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Blog Entry" /> <a href="https://www.fsf.org/blogs/community/join-the-struggle-to-keep-digital-restrictions-out-of-web-standards" class="state-published">Join the struggle to keep digital restrictions out of Web standards</a> <span class="discreet"> by zakkai, Mar 08, 2016 03:38 PM </span> </dt> <dd>An important development is ongoing in our Defective by Design campaign, which fights Digital Restrictions Management (DRM).</dd> <dt class="contenttype-event"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Event" /> <a href="https://www.fsf.org/events/join-the-fsf-and-friends-in-updating-the-free-software-directory" class="state-published">Join the FSF and friends in updating the Free Software Directory</a> <span class="discreet"> by donaldr3, Oct 04, 2012 03:47 PM </span> </dt> <dd>Join us in improving the Free Software Directory</dd> <dt class="contenttype-topic"> <a href="https://www.fsf.org/appeal/2020-spring/join-the-fsf-free-software-in-action" class="state-published">Join the FSF: Free Software in Action</a> <span class="discreet"> by zoe, Nov 14, 2020 10:59 PM </span> </dt> <dd></dd> <dt class="contenttype-document"> <a href="https://www.fsf.org/appeal/2010/add-the-fsf-fundraising-banner-to-your-website" class="state-visible">Add the FSF fundraising banner to your website</a> <span class="discreet"> by mattl, Dec 13, 2010 02:50 PM </span> </dt> <dd></dd> </dl> </div> </div> </article> </div> <div id="viewlet-below-content"> </div> </div> </div></div></div> <div id="fsf-sidebar" class="yui-b visualNoPrint"> <aside> <span style="display: none;">1PC9aZC4hNX2rmmrt7uHTfYAS3hRbph4UN</span> <div id="search"> <form id="sidesearch" name="searchform" action="/search"> <p><input name="SearchableText" tabindex="1" type="text" size="30" title="Search Site" /></p> <p><input class="searchButton" type="submit" value="Search" /></p> </form> </div> <div class="visualPadding"> <div class="portletWrapper" data-portlethash="706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a737570706f72746572" id="portletwrapper-706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a737570706f72746572"><div class="portletStaticText portlet-static-supporter"><div style="text-align: center;"> <h5>Sign up</h5> <form action="https://my.fsf.org/civicrm/profile/create?reset=1&amp;gid=31" method="post"> <p>Enter your email address to receive our monthly newsletter, the<br /><a href="https://www.fsf.org/free-software-supporter/">Free Software Supporter</a></p> <p><input 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data-portlethash="706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6e657773" id="portletwrapper-706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6e657773"><dl class="portlet portletNews" xmlns="http://www.w3.org/1999/xhtml"> <dt class="portletHeader"> <span class="portletTopLeft"></span> <a href="https://www.fsf.org/news" class="tile">News</a> <span class="portletTopRight"></span> </dt> <dd class="portletItem odd"> <a href="https://www.fsf.org/news/fsf40-hackathon-registration-now-open" class="tile" title="BOSTON, Massachusetts, USA (Tuesday, July 16, 2025), the Free Software Foundation (FSF) today announced the projects that will participate in the virtual FSF40 hackathon on November 21-23 and opened general registration."> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="News Item" /> Org Mode, GNU Guix, Mattermost, and more projects to participate in the FSF's hackathon <span class="portletItemDetails">Jul 16, 2025</span> </a> </dd> <dd class="portletItem even"> <a href="https://www.fsf.org/bulletin/2025/spring/free-software-can-strengthen-the-us-healthcare-system" class="tile" title=""> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="News Item" /> Free software can strengthen the US healthcare system <span class="portletItemDetails">Jun 30, 2025</span> </a> </dd> <dd class="portletItem odd"> <a href="https://www.fsf.org/bulletin/2025/spring/i-didnt-get-free-software-until-i-became-a-reverse-engineer" class="tile" title=""> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="News Item" /> I didn't get free software until I became a reverse engineer <span class="portletItemDetails">Jun 30, 2025</span> </a> </dd> <dd class="portletFooter"> <span class="portletBottomLeft"></span> <a href="https://www.fsf.org/news"> More news&hellip; </a> <span class="portletBottomRight"></span> </dd> </dl></div> <div class="portletWrapper" data-portlethash="706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6673662d626c6f67732d727373" id="portletwrapper-706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6673662d626c6f67732d727373"><div class="portletStaticText portlet-static-fsf-blogs-rss"><p style="float: right;"><a href="/static/fsforg/rss/blogs.xml" title="Subscribe to an RSS feed of FSF blogs"><img src="/static/fsforg/css/img/rss.gif" alt="RSS feed" /></a></p></div> </div> <div class="portletWrapper" data-portlethash="706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a726563656e742d626c6f6773" id="portletwrapper-706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a726563656e742d626c6f6773"><dl class="portlet portletCollection portlet-collection-recent-blogs"> <dt class="portletHeader"> <span class="portletTopLeft"></span> <a href="https://www.fsf.org/blogs/recent-blog-posts"> <span>Recent blogs</span> </a> <span class="portletTopRight"></span> </dt> <dd class="portletItem odd"> <a href="https://www.fsf.org/blogs/community/fsf40-celebration-registration" class="tile contenttype-blog-entry" title="The registration for the FSF40 celebration is open. We hope you'll join us for the festivities on October 4, 2025, at the Wentworth Institute of Technology in Boston, MA, USA!"> 4 decades, 4 freedoms, 4 all users </a> </dd> <dd class="portletItem even"> <a href="https://www.fsf.org/blogs/community/spring-2025-thank-you" class="tile contenttype-blog-entry" title=""> A very warm welcome to 152 new associate members </a> </dd> <dd class="portletItem odd"> <a href="https://www.fsf.org/blogs/community/spring-2025-fundraiser-extended" class="tile contenttype-blog-entry" title=""> The work's not over: Help us reach 200 members by July 18 </a> </dd> <dd class="portletItem even"> <a href="https://www.fsf.org/blogs/community/the-software-we-have-to-use-at-work-must-respect-our-freedom" class="tile contenttype-blog-entry" title="Many free software supporters worldwide are forced to give up their freedom when they log in or go to work. "> The software we have to use at work must respect our freedom </a> </dd> <dd class="portletFooter"> <span class="portletBottomLeft"></span> <span> <a href="https://www.fsf.org/blogs/recent-blog-posts"> <span class="hiddenStructure">Recent blogs - </span> <span>More&hellip;</span> </a> </span> <span class="portletBottomRight"></span> </dd> </dl> </div> <div class="portletWrapper" data-portlethash="706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6673662d6576656e74732d727373" id="portletwrapper-706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6673662d6576656e74732d727373"><div class="portletStaticText portlet-static-fsf-events-rss"><p style="float: right;"><a href="/static/fsforg/rss/events.xml" title="Subscribe to an RSS feed of FSF events"><img src="/static/fsforg/css/img/rss.gif" alt="RSS feed" /></a></p></div> </div> <div class="portletWrapper" data-portlethash="706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6576656e7473" id="portletwrapper-706c6f6e652e7269676874636f6c756d6e0a636f6e746578740a2f6673660a6576656e7473"> <dl class="portlet portletEvents"> <dt class="portletHeader"> <span class="portletTopLeft"></span> <a href="https://www.fsf.org/events" class="tile"> Upcoming Events </a> <span class="portletTopRight"></span> </dt> <dd class="portletItem odd"> <a href="https://www.fsf.org/events/community-meetup-harbin-china" class="tile" title="Have a casual chat about free software and exchange experiences about using and moving to free software. And just have fun! "> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Event Octet Stream" /> Community meetup in Harbin, China </a> <span class="portletItemDetails"> <span>Oct 04, 2025 09:00 AM - 11:00 AM</span> <span> &mdash; Starbucks at Capitaland, No.1-1 Xuefu Road, Nangang District </span> </span> </dd> <dd class="portletItem even"> <a href="https://www.fsf.org/events/fsf40-celebration" class="tile" title="We hope you'll join us for the festivities on October 4, 2025, either at the Wentworth Institute of Technology in Boston, MA, USA or online!"> <img width="16" height="16" src="https://www.fsf.org/static/fsforg/css/img/newsitem_icon.gif" alt="Event" /> FSF40 celebration </a> <span class="portletItemDetails"> <span>Oct 04, 2025 10:00 AM - 07:00 PM</span> <span> &mdash; Wentworth Institute of Technology in Boston, MA, USA and online </span> </span> </dd> <dd class="portletFooter"> <a href="https://www.fsf.org/events/aggregator/previous" class="tile"> 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