My favorite is the ability to spruce up my posts with more than just text or images. There's video embeds, lists, galleries and most importantly related links.
I love the related links feature. It's a great tool to expand on a topic in an organized manner.
I'm with you on this one.
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Sometimes when something isn't worthy of it's own snap because its just an update or just extra info, it's perfect to add as a related links and much quicker!..