aut0poietic/wp-admin-modal-example: Two simple modal window examples that mimmic the new Media Modal in WordPress 3.5+.
lucatume/cmb2-meta-split: A WordPress plugin that will take care of saving parallel meta when using the CMB2 plugin.
tlovett1/json-rest-api-subscriptions: Webhooks style subscriptions for all post types via the WordPress JSON REST API.
Scaling WordPress | The WordPress ‘big projects’ group. Practical advice, discussion and idea sharing for scaling WordPress.
Troy Hunt: Scaling a standard Azure website to 380k queries per minute of 163M records with loader.io
High Performance WordPress – Part 1 – themesforge.com – WordPress Themes, Tutorials, News, Tips and More
secretpizzaparty/huh: Easily turn huh into eureka with in dashboard documentation for WordPress themes
WebDevStudios/WDS-Simple-Page-Builder: Uses existing template parts in the currently-active theme to build a customized page with rearrangeable elements.
xwp/wp-customize-widgets-plus: WordPress plugin for lab features and a testbed for improvements to Widgets and the Customizer.