Boone Gorges

Mariusooms

reblevins

Requires BuddyPress 1.7+ and PHP 5.3+.
The BuddyPress Groupblog plugin extends the group functionality by enabling each group to have a single blog associated with it. Group members are automatically added to the blog and will have blog roles as set by the groupblog admin settings.
Features:
<ul>
<li>P2 integration and frontend posting.</li>
<li>Admin can set Template specific groupblogs.</li>
<li>Allow group admins choose the desired template page themselves.</li>
<li>Full blog theme integration. The included bp-groupblog theme mimics the group pages.</li>
<li>Automated blog registration at group creation stage.</li>
<li>Bypass default blog validation to allow dashes, underscores, numeral only and minimum character count.</li>
<li>Blog privacy settings are initially inherited from group privacy settings.</li>
<li>Group members are automatically added to the blog.</li>
<li>Blog roles match group roles as set by the group admin.</li>
<li>Solid error checking that the blog follows validation.</li>
<li>Group admin tab to access the group-blog settings.</li>
<li>Blog themes will have the ability to pull in group info and create a theme that could resemble the group exactly.</li>
<li>Leaving the group will downgrade the member role to ‘subscriber’.</li>
<li>Allow the group admin to select one of his/her existing blogs.</li>
<li>A new ajax backend.</li>
</ul>

BuddyPress Groupblog

BuddyPress Groupblog extends the group functionality by enabling the group to have a single blog associated with it.

Christian Wach

Commentpress

CommentPress Core is an open source theme and plugin for WordPress that allows readers to comment in the margins of a text. Readers may comment paragraph-by-paragraph, line-by-line, block-by-block or by selecting text (coming soon to touch devices).
Annotate, gloss, workshop, debate: with CommentPress Core you can do all of these things on a finer-grained level, turning a document into a conversation. It can be applied to a fixed document (paper/essay/book etc.) or to a running blog. Use it in combination with BuddyPress and Groupblogs to create communities around your documents.
Please note: for the time-being, this plugin works best when the Gutenberg editor is disabled. If you want the simplest CommentPress experience in WordPress 5.x please install the Classic Editor or Gutenberg Ramp plugin to manage the post types on which the Gutenberg editor is enabled.
Please note: this plugin comes bundled with three official themes, one of which must be active for CommentPress Core to function. The “CommentPress Modern Theme” will be auto-activated when the plugin is first activated. The old “CommentPress Default Theme” is still included for those who wish to stay with it or have built their own child themes for it. Since version 3.9 a new “CommentPress Flat Theme” is included for those who want an alternative layout. If you are upgrading from a previous version of CommentPress (3.0.x – 3.3.x), please follow the instructions in the Installation section before doing so.
For further information and instructions please see the <a href="http://www.futureofthebook.org/commentpress/" rel="nofollow ugc">CommentPress website</a> or visit the plugin’s <a href="https://github.com/IFBook/commentpress-core" rel="nofollow ugc">GitHub repository</a>. Contact the developers by email at <a href="mailto:cpdev@futureofthebook.org" rel="nofollow ugc">cpdev@futureofthebook.org</a>.
For sites hosted in the European Union, please note: the “CommentPress Default Theme” makes use of cookies, but for presentational purposes only. If you intend to use the “CommentPress Default Theme” on a public site, you may need to inform visitors of this.
Many thanks to the following for translations:
<ul>
<li>French – <a href="https://wordpress.org/support/profile/pouhiou">Pouhiou</a></li>
<li>Spanish – Andrew Kurtis from <a href="http://www.webhostinghub.com/" rel="nofollow ugc">WebHostingHub</a></li>
<li>Dutch – Gerrit Jan Dijkgraaf</li>
<li>German – Chris Witte</li>
</ul>

CommentPress Core

CommentPress Core allows fine-grained commenting in the margins of a text. Use it to annotate, workshop or debate a social text in a social context.

BuddyPress Groupblog vs CommentPress Core