Media in posts- You could add photos or video to your posts, and they are also showed as thumbnails in when you post them. The thumbnails could expand when clicked, making the viewing of photos or videos much easier instead of having it opened in a new tab like Twitter does.
Emoticons- In connection to status-posting, the cool thing about Weibo is its rich offering of various cute emoticons. Remember how Facebook users became excited when they discovered that you could actually put shit in chat conversations? or smileys in comments? Goes to show that humans like anything that visually shows their emotions online.
Popular topics- This one is very much like Twitter's, however aside from showing the top online topics, Weibo arranges them according to broader categories like Hotspots, Television, Weibo Community, Interests, etc.
Chat Function- Very much like Facebook, enables you to chat with friends, which you could see whether they're online or not in a small sidebar on the right. It only shows the profile photos which is very convenient and doesn't take too much space.
Template settings- One of my favorite features. You could edit how your homepage looks like and Weibo already have cute templates to choose from.
Games-I actually don't care much about the games since I'm not into playing. However the games Weibo has for its users look cool and are different from what Facebook usually offers. Most of it are based on animes and web based games.
How to sign up ? I think this one HERE is a good tutorial
Any celebrities I could follow? Western Celebrities HERE, For Asian celebrities =_=? So many of them, you just have to google them yourselves.