Setting up an online business is an attractive option most people like to explore. The ease of setting it up and running it make it a lucrative option for budding entrepreneurs. However, the key to succeed with internet business ideas is focusing on a niche and keeping it simple; and yes, it doesn’t have to be cutting edge… just learn from successful online businesses and turn the concept into your very own. If you like classic, yet proven web business ideas, here are 20 of them to inspire you: 1.…