What obstacles might companies face when trying to make their products or services 'catch on' as described in 'Contagious: Why Things Catch On' and how could they overcome them?

The book 'Contagious: Why Things Catch On' presents several innovative ideas. One of the key concepts is the importance of social transmission or word-of-mouth in making things popular. The book suggests that people tend to gravitate towards products, services, and movements that are easy to use, yield great results, and evoke positive emotions. Another surprising idea is the power of practical value. If a product or service offers something better than what consumers were using in the past, people will be quick to switch and feel good about their decision. This is exemplified by the transition from bulky computer monitors and television sets to lighter, easier-to-use flat screens.

The 'feel good factor' in the context of the book 'Contagious: Why Things Catch On' refers to the positive emotional response consumers experience when using a product or service. This factor is crucial in making a product or service popular. When consumers find a product easy to use, effective, and it makes them feel good, they are more likely to switch to it from what they were using before. An example given in the book is the transition from bulky old-fashioned computer monitors and television sets to newer, lighter flat screens. The ease and convenience of the new technology gave consumers a 'feel good factor', making the product highly popular.