I’d be remiss to not mention Slack or Discord here as well. Those services are good, but they are too insular to be a real threat to Twitter. You have to know someone on the inside to get in yourself, and there are so many versions/channels/servers for you to join it’s hard to keep them all straight. They can be good for you and a couple dozen (hundred) of friends to stay in touch, but it’s not great for a Twitter-style experience.
Periscope is an app available on Android and iOS that lets you livestream videos to social media. The live streaming is not limited to reporters or media but anyone. Basically, anyone can live stream anything through the app and it is integrated with Twitter nicely. Its social features like interactions and the great comments section make it a great live streaming app. The app was recently acquired by Twitter, so you can expect it to grow immensely in the future.
Looking for a guild that accepts "newish" players into the guild and which is willing to teach the game mechanics. Currently I'm lvl 84 (not so new I guess, but still I can't really see myself as an intermediate). I'm playing Winter Orb Elementalist Witch, currently I'm mapping most of the time. My objective with my current character in this league would be to get to the Shaper. Still a long way to go but hopefully I'll get close to him.