The idea is interesting,but it is very hard task to predict price movement in world of cryptocurrency.For short term prediction the forecast may be fairly accurate,but for 2 weeks it's a pretty slippery ground.
I see you actual price of
BTC now is 11289$,but on most exchanges price is close to 11400-from where you get price on your site?
Let see how your prediction is accurate in long term for March 5,it say 11433$ in 2 weeks-what is actually todays price.My feeling says price should be something more than that,but let's wait and see

Greetings,
We have added real-time currency price update every 5 minutes for all supported currencies. There is no need to refresh the browser page to get latest price.
Yes, 2 -week forecast is not very accurate, though it shows where the price is going to move. It is recalculated once a day.
It is nice to have real time update,looks much better then before.As I say long term prediction have no too much sense since
BTC is very unpredictable and it can go up or down anytime.
I have a suggestion for new coin,it is called
Nano (former RaiBlocks).
Regarding financing of the project,you should consider to add some advertisement on your site to cover the costs of hosting and to get something for further development.I think that none of the users will not complain if the ads are unobtrusive and that there is not too much of them.