10 Y Combinator Startups to Watch

Y Combinator is one of the best-known startup incubators in Silicon Valley. Since its launch in 2005, it has helped launch hundreds of startups, including Reddit, Scribd, Airbnb and Dropbox

Participating startups come from all over the world to spend three months tweaking their pitches, working on their products and getting ready for the final day of the program when they pitch to a room full of investors at Demo Day

This year's first group of hopefuls, who presented Tuesday in Mountain View, included a service to help passengers get reimbursed by airlines for delayed flights, a new technology to make batteries last longer and a startup that's creating new materials for 3D printing. Read more...