South Korean mega-social network Cyworld has launched in the US, bringing another avatar-based social system to the already crowded US market. Cyworld is a giant in South Korea, with reportedly 90% of the population under the age of 20 registered to the service, which is a market share I doubt they’ll ever see here in the US. Cyworld ties in a web-game with social networking, allowing the user to create their own personalized cartoon avatar and Minihome to personalize and invite friends to visit. There is even an in-world currency (not currently present in the US version) where users can purchase more Cyworld Currency (Acorns?) in exchange for real-world currency (not sure if that works vice-versa). I unfortunately don’t see this service taking off stateside, as their reliance on the younger market just doesn’t translate over to the US and with services like MySpace and Facebook currently struggling to define themselves in the youth market, it makes it that much rougher for Cyworld.

Read more: Cyworld (Via Techcrunch)

New web-application Emotionr wants to know how you and the rest of the world are feeling. Have you had a bad day, well, now you can let the world know about it AND effect the world’s overall happiness level at the same time! Consider Emotionr your personal emotion log, you sign-in to the site, set your happiness level, enter a one word answer about your current feeling and another one word as to what makes you feels this way, then submit. You are also free to keep track of your friend’s moods and their friends and so on, social-networking style.

Read more: Emotionr – How are you feeling today?

Episode World is a diamond in the rough of community sites, allowing users to update, track, and discuss their favorite television shows. Registered users control the content, by submitting new episodes, synopsis, episode and season numbers, and reviews. Some nifty features on the site are abilities such as bookmarking your favorite episode for quick access to season and episode guides, as well as being able to track which episodes you’ve recently watched. For instance, after watching the last episode of Deadwood (which I hope you all did), you are able to go and checkmark the episode as watched, and this way, you don’t forget which episode you left when it comes to watching again. Kudos to you Episode World.

From the EPW FAQ:

EPisodeWorld.com (short EPW) offers information about TV-Shows. The information offered includes but is not limited to plot outlines, airdates, episode names, main as well as guest cast, and more to come. It’s best described as an online TV Guide, so you can read up on your favorite shows and will know when the next episodes will air. Registered users can actively participate in keeping the information up-to-date by submitting changes to existing episodes or submitting new episodes. Registered users can also customize the information displayed (e.g. language) and can keep track of their favorite shows via bookmarks and mark episodes as watched.

[Episode World]