excerpts and they are included in post listings, including RSS/Atom feeds.

BjornW

Tag Pages

Add tags to Pages, just as you would do with Posts

Tarmo Toikkanen

Adds tags, categories, and excerpts to pages. Also adds pages to most views 
that list posts, such as the main view, tag archives, and the rss feed.
The plugin has no settings, does not alter the database and only uses hooks 
to achieve its goal. It also should work perfectly fine with Multisite 
installations.

Alternatives to Pages are Posts

Top alternatives