Creating web applications for dual use can be challenging and fun. If you know what you're doing, that is. Forbes.com has an exclusing video discussion with the web app creator of YO! and discusses humble beginnings and success of his web app venture.
If you want something out of life, start a business, eat the feelings of doubt, eat the feelings of what people will think of you, and keep going.
Simple as that. Success is not get rich quick operation either. You have to have patience.
Inspiring article: (Business Insider) - Starting from the bottom
And if you feel you have the business muscle for the hustle and the drive to stay the course when things get hard in your entrepreneurial journey to new horizons, read this for inspiration.