free stock data and prediction tools

mas (Market Analysis System):
can give you index graphs, signals, etc.

venice:
impliments NN and genetic programming for prediction.
can give you performance of given rules.

Result1:
mas has more traditional signals then venice.
venice has more functions for prediction.

Result2:
stocks are similar to my proteins, hard to predict.
performance is about 8% / half year.

Result3:
stock data for Taiwan can be got from yahoo and google for free.
ex: "2330.tw" in yahoo, "tpe:2330" in google