diff --git a/www/contribute/index.php b/www/contribute/index.php
index d6170f11..61c38252 100644
--- a/www/contribute/index.php
+++ b/www/contribute/index.php
@@ -13,7 +13,7 @@ require_once('Core.php');
 			<h2>Everyone</h2>
 			<ul>
 				<li>
-					<p><a href="https://groups.google.com/forum/#!forum/standardebooks">Join the Standard Ebooks mailing list.</a></p>
+					<p><a href="https://groups.google.com/g/standardebooks">Join the Standard Ebooks mailing list.</a></p>
 					<p>The mailing list is the best way to contact the Standard Ebooks project about any question, suggestion, concern, or contribution you might have. We’re just an email away!</p>
 				</li>
 				<li>
@@ -21,7 +21,7 @@ require_once('Core.php');
 				</li>
 				<li>
 					<p>Help us catalog fine art paintings from scans of old art books. We have links to complete book scans that you can browse, and we need your help to catalog the art in each book for use as cover art in future ebooks.</p>
-					<p>No technical experience is necessary. <a href="https://groups.google.com/forum/#!forum/standardebooks">Contact the mailing list if you want to help.</a></p>
+					<p>No technical experience is necessary. <a href="https://groups.google.com/g/standardebooks">Contact the mailing list if you want to help.</a></p>
 				</li>
 			</ul>
 		</section>
diff --git a/www/contribute/producers.php b/www/contribute/producers.php
index 93c0d028..1f5849b3 100644
--- a/www/contribute/producers.php
+++ b/www/contribute/producers.php
@@ -16,7 +16,7 @@ require_once('Core.php');
 				<p>After your first production is complete, you can move on to working on longer or more complex works.</p>
 			</li>
 			<li>
-				<p>Contact the <a href="https://groups.google.com/forum/#!forum/standardebooks">Standard Ebooks mailing list</a> to pitch the ebook you’ve selected, <em>before you begin production</em>.</p>
+				<p>Contact the <a href="https://groups.google.com/g/standardebooks">Standard Ebooks mailing list</a> to pitch the ebook you’ve selected, <em>before you begin production</em>.</p>
 			</li>
 			<li>
 				<p>Carefully review the entirety of the <a href="/manual">Standard Ebooks Manual of Style</a>.</p>
@@ -25,7 +25,7 @@ require_once('Core.php');
 				<p>Once we’ve OK’d your selection and you’ve read the style manuals, you can get started! Follow the steps in our <a href="/contribute/producing-an-ebook-step-by-step">step-by-step guide to producing an ebook</a> to take your ebook from start to finish.</p>
 			</li>
 			<li>
-				<p>Once you’ve finished your ebook and completed a complete cover-to-cover proofread, contact the <a href="https://groups.google.com/forum/#!forum/standardebooks">Standard Ebooks mailing list</a> and we’ll assign a reviewer to review your work.</p>
+				<p>Once you’ve finished your ebook and completed a complete cover-to-cover proofread, contact the <a href="https://groups.google.com/g/standardebooks">Standard Ebooks mailing list</a> and we’ll assign a reviewer to review your work.</p>
 			</li>
 			<li>
 				<p>Most first productions have a significant amount of errors. Not to worry! Once you’ve fixed them, contact the mailing list again.</p>
diff --git a/www/contribute/producing-an-ebook-step-by-step.php b/www/contribute/producing-an-ebook-step-by-step.php
index 1a1c743a..26bf7d1d 100644
--- a/www/contribute/producing-an-ebook-step-by-step.php
+++ b/www/contribute/producing-an-ebook-step-by-step.php
@@ -504,9 +504,9 @@ proceed to seal up my confession, I bring the life of that unhappy Henry Jekyll
 				<h2>Create the cover image</h2>
 				<aside class="alert">
 					<p class="warning">!!! STOP !!!</p>
-					<p><strong>Do not commit cover art to your repository’s history until you have <a href="https://groups.google.com/forum/#!forum/standardebooks">cleared your selection with the S.E. Editor-in-Chief.</a></strong></p>
+					<p><strong>Do not commit cover art to your repository’s history until you have <a href="https://groups.google.com/g/standardebooks">cleared your selection with the S.E. Editor-in-Chief.</a></strong></p>
 					<p>If you commit non-public-domain cover art, you’ll have to rebase your repository to remove the art from its history. This is complicated, dangerous, and annoying, and you’ll be tempted to give up.</p>
-					<p><a href="https://groups.google.com/forum/#!forum/standardebooks">Contact us first</a> with page scans verifying your cover art’s public domain status before you commit your cover art!</p>
+					<p><a href="https://groups.google.com/g/standardebooks">Contact us first</a> with page scans verifying your cover art’s public domain status before you commit your cover art!</p>
 				</aside>
 				<p>Cover images for Standard Ebooks books have a standardized layout. The bulk of the work you’ll be doing is locating a suitable public domain painting to use. See the <a href="/manual/latest/10-art-and-images">Art and Images section of the Standard Ebooks Manual of Style</a> for details on assembling a cover image.</p>
 				<p>As you search for an image, keep the following in mind:</p>
diff --git a/www/contribute/report-errors-upstream.php b/www/contribute/report-errors-upstream.php
index acdb9473..41654e67 100644
--- a/www/contribute/report-errors-upstream.php
+++ b/www/contribute/report-errors-upstream.php
@@ -23,7 +23,7 @@ require_once('Core.php');
 		<p>Once you’re logged in and have found the text you want to edit (for example, this <a href="https://en.wikisource.org/wiki/The_Good_Soldier/Part_I,_Chapter_I">first chapter of Ford Madox Ford’s <i>The Good Soldier</i></a>), click the “Edit” button in the header. You can then make the changes in the text editor field that appears, write a summary of the changes you’ve made in the Summary field, and finally click “Publish Changes” to save them.</p>
 		<p>If you want to double-check your contribution, you can click on “View History” in the header to see the timeline of changes to the transcription. Your latest change should appear at the top along with its summary.</p>
 		<h2>Reporting transcription errors to other sources</h2>
-		<p>While unusual, other sources have been used for Standard Ebooks ebooks (for example <a href="https://people.umass.edu/klement/tlp/tlp.html">this transcription</a> of <a href="/ebooks/ludwig-wittgenstein/tractatus-logico-philosophicus/c-k-ogden">Ludwig Wittgenstein’s <i lang="la">Tractatus Logico-Philosophicus</i></a>). If you’ve found an error in one of these transcriptions, it would be best to <a href="https://groups.google.com/forum/#!forum/standardebooks">contact us via our mailing list</a> to discuss the situation.</p>
+		<p>While unusual, other sources have been used for Standard Ebooks ebooks (for example <a href="https://people.umass.edu/klement/tlp/tlp.html">this transcription</a> of <a href="/ebooks/ludwig-wittgenstein/tractatus-logico-philosophicus/c-k-ogden">Ludwig Wittgenstein’s <i lang="la">Tractatus Logico-Philosophicus</i></a>). If you’ve found an error in one of these transcriptions, it would be best to <a href="https://groups.google.com/g/standardebooks">contact us via our mailing list</a> to discuss the situation.</p>
 	</article>
 </main>
 <?= Template::Footer() ?>
diff --git a/www/contribute/report-errors.php b/www/contribute/report-errors.php
index e86812e7..294e6f2b 100644
--- a/www/contribute/report-errors.php
+++ b/www/contribute/report-errors.php
@@ -25,7 +25,7 @@ require_once('Core.php');
 				<p>And we’ll be able to find the section you’re talking about and correctly curl the quotation mark.</p>
 			</li>
 		</ol>
-		<p>Once you have these two items, <a href="https://groups.google.com/forum/#!forum/standardebooks">contact us via our mailing list</a> with that information and we’ll get right on it!</p>
+		<p>Once you have these two items, <a href="https://groups.google.com/g/standardebooks">contact us via our mailing list</a> with that information and we’ll get right on it!</p>
 		<p>We often use transcripts from other projects as a base for Standard Ebooks. If you’d like, you can also report any transcription errors to those projects too (contributing upstream, in open source terminology). <a href="/contribute/report-errors-upstream">Our guide to reporting errors to Gutenberg and other sources.</a></p>
 	</article>
 </main>
diff --git a/www/contribute/wanted-ebooks.php b/www/contribute/wanted-ebooks.php
index c69c0829..0f947f73 100644
--- a/www/contribute/wanted-ebooks.php
+++ b/www/contribute/wanted-ebooks.php
@@ -5,7 +5,7 @@ require_once('Core.php');
 	<article>
 		<h1>Wanted Ebooks</h1>
 		<p>If you’re interested in producing an ebook for Standard Ebooks, why not work on one of these books?</p>
-		<p>If something in this list interests you, please <a href="https://groups.google.com/forum/#!forum/standardebooks">contact us at our mailing list</a> for help before you start work.</p>
+		<p>If something in this list interests you, please <a href="https://groups.google.com/g/standardebooks">contact us at our mailing list</a> for help before you start work.</p>
 		<p>If you want to suggest a different book to produce, please carefully review <a href="/contribute/accepted-ebooks">the kinds of work we do and don’t accept</a>.</p>
 		<h2>For your first production</h2>
 		<p>If nothing on the list below interests you, you can pitch us something else you’d like to work on.</p>