Please review my webapp (Streetread)
ig1: You'll stuggle.You won't even touch the professional markets dominated by  reuter/bloomberg/etc. They're playing a whole different ballgame.Which means you'll have to go after the google/yahoo/ms finance market. Which might be possible, but you don't look to have any competitive advantage over those services at all. While on the other hand they have vast competitive advantages over you.My gut feeling from your site and your comments is that you've gone into this project without a good understanding of the market (what's currently available, why people use it) and without a clear user in mind.My personal opinion is that you should scrap it, chalk up the experience, and have another go, but this time concentrate on something you have domain knowledge of.