In producing everything from at-home-mushroom kits to foldable-ballet slippers, these young companies are making plenty of waves in startup land. Here is Entrepreneur's 2013 list of the top 30 startups to watch.
Though popularized by giant web companies Amazon and Netflix, startups are increasingly getting into the algorithm game -- hoping the practice not only cements life-long customers but also added sales.
Execution is everything in entrepreneurship. But often your state of mind -- or perhaps more accurately, how you think -- will help determine what products or services you'll create and industries you'll disrupt.