Feature posts in your sidebar. Select posts by Blog (multisite), individually, by Post Type, or by Tag/Category/Taxonomy.
Super Widgets let you display the Title, Featured Image, and Excerpt of a selected post or posts in your sidebar.
Narrow down posts to feature by blog (if multisite), post type, or taxonomy.
Show a single post (post/page/custom post type) with the Single Post (Post Type) widget.
Show the most recent post in a selected taxonomy with the Single Post (Taxonomy) widget.
Show the most recent X posts in a selected taxonomy with the Multi Post widget.