Block category: Common
The Common category includes the following blocks: Paragraph, image, headings, list, gallery, quote, audio, cover,
Block category: Embeds
This post tests various embed blocks:
Media: Twitter Embeds
Really cool to read through and find so much awesomeness added to WordPress 3.6 while
Post Format: Video (WordPress.tv)
Posted as per the instructions in the Codex.
Edge Case: Many Tags
This post has many tags.