We just added tags to Proseful! Now you can categorize your posts however you see fit.
We recently added the ability to set a "featured image" for a post! Featured images are shown for each post on the homepage of your blog; this helps each post pop on its own. As well, a featured image is also prominently shown on the post's page itself.
In case you didn't catch it, we recently shipped support for embeds. Now you can add YouTube videos, Instagram photos, SoundCloud audio, Tweets and more to your posts.