This layout features a 2-column Showcase atop the Home Page with a featured post and widget area, followed by three blog post feeds: the Classic feed at left (which features this sidebar), then two Grid feeds. Interstitial content blocks between each feed provide more content to explore! This individual widget is a Text widget.
It is compatible with MailChimp forms. You can edit the pop-up's subscribe title, this description text, add an optional photo, change all colors, and set a display frequency! Works with Wordpress.org themes. Buy it here.