Feeds 2.0 was a personalized RSS aggregator launched in 2006 that utilized machine learning to rank news articles based on what it learned the user found interesting. While it gained significant publicity early on and won an award for its business plan, it struggled to secure funding from Greek and European/US venture capitalists. This led to challenges enhancing the product and maintaining operations over time. However, the founders believe failures provide valuable lessons and their machine learning technology could still be applied to new domains through collaboration with other entrepreneurs.