Solve a problem. Examples: 1. Find an area with a lot of questions and not many answers. Create a content site. Attract 834,000 visitors per month. Advertising

Solve a problem. Examples: 1. Find an area with a lot of questions and not many answers. Create a content site. Attract 834,000 visitors per month. Advertising should net you $100K per year (this is an approximation and can vary a LOT). 2. Find a problem large enough for which a solution can be built with PHP and mySQL (since you mentioned that's your main skill set). Build a solution which costs around $25/month. You need only 334 customers to reach your goal. How do you identify problems? Do some market research (using Google Trends, Amazon Top Sellers, niche forums, etc). Good luck.