Using Lifestream, you can aggregate all of your online activities and make them public. This way, your friends can quickly see your newly bookmarked items on Mister Wong, pictures on Flickr, videos on YouTube, updates on Facebook or Twitter, as well as new articles you've posted on your blog. Lifestream supports over 40 different services and is currently working to integrate even more Web 2.0 services.
The concept of Lifestream is simple: Many online services allow users to subscribe via RSS feeds, enabling them to read content without opening the website’s main page. For example, the latest uploaded photos on Flickr, the most popular videos on YouTube, or the newest bookmarks saved on Mister Wong can all be viewed through an RSS feed.