That is a nice site, I just bookmarked it, thank you. I've read http://blog.bitcoinwatch.com/
from time to time. That's actually relevant to my question. Bitcoin isn't a traditional financial tool and it does not seem behave like one either. So, I don't understand the mechanisms this blogger is using to predict the Bitcoin market movements---let alone the strategies that others are using to successively trade Bitcoin.
The only thing that jumps out at me is that there does seem to be a 12 hr up/down cycle in the Bitcoin market, but I could be mistaken.