StockTwits is an open, community-powered idea and information service for investments. Users can eavesdrop on traders and investors, or contribute to the conversation and build their reputation as savvy market wizards. The service takes financial related data - using Twitter as the content production platform - and structures it by stock, user, reputation, etc. Log into the site with your Twitter details and you will be presented with a user interface filled with comments and stats showing the top ticker buzz, the top StockTwit talkers, and the top gainers and losers. One great feature is the ability to add stocks and save them to your own portfolio and limit the conversation around it to your most trusted sources. Watch the whole stream or create your own filters. Another cool feature is the way the site aggregates 'buzz' and discussion around individual stocks. No other financial site on the web does that. And it does it real-time because of the Twitter integration. The site doesn't have a lot of features and users love it for that. The beauty is the simplicity. Messages are short and allow a person to read several interesting bits of stock information from various sources at a glance. The lightweight approach highlights the power of delivering vertical value to a horizontal community, where both constituencies share a common passion: the desire to consume and share real-time information. Discovery is a key focus of the site. It's important for people to find other traders and investors that help them improve. Using StockTwits it's really easy to get the full history of "tweets" of any contributor. In essence, StockTwits helps people interested in stocks to socialize their ideas. It focuses on stock trading, letting users discuss their latest stock trades in an interface using Twitter as the content production platform, adding features like graphs and the ability to filter messages.