Stephanie Leary

Creates widgets that display excerpts from posts or pages in the sidebar. You may use ‘more’ links and/or link the widget title to the post or page. Requires <a href="http://blog.ftwr.co.uk/wordpress/page-excerpt/" rel="nofollow ugc">Page Excerpt</a> or <a href="http://www.laptoptips.ca/projects/wordpress-excerpt-editor/" rel="nofollow ugc">Excerpt Editor</a> for page excerpts. Supports <a href="http://robsnotebook.com/the-excerpt-reloaded/" rel="nofollow ugc">the_excerpt Reloaded</a> and <a href="http://sparepencil.com/code/advanced-excerpt/" rel="nofollow ugc">Advanced Excerpt</a>.
Now on <a href="https://github.com/sillybean/Post-and-Page-Excerpt-Widgets" rel="nofollow ugc">GitHub</a>.

Post and Page Excerpt Widgets

Creates widgets that display excerpts from posts or pages in the sidebar.

unitepress

Joan Boluda

Oscar Abad Folgueira

This plugin automaticaly adds excerpts for Pages

Post and Page Excerpt Widgets vs Excerpts for Pages