bitcoin

http://www.weusecoins.com/
http://bitcoin.org/

——————————————————————————————————————————–

Profitability Calculator

http://bitcoinx.com/profit/index.php

Good Interview / explanation

“a currency is nothing really that an agreement upon parties that this synthetic thing has value.”

Bitcoin Trading

https://mtgox.com/

Bitcoin info

http://blockchain.info/

Core concepts and terms:

• Hash:
I tell you that I added two numbers together and the result was 14,862. Given only that number there’s no way you could tell me what two numbers I added to get that total, but it would be easy to reproduce my result if I asked you to add 3,608 and 11,254.

• Block:
Transactions are bundled up into big chunks of data called blocks. These blocks are linked together in such a way that each one proves that the block before it was valid.

• Difficulty:
Ensure that [Bitcoin’s] math problems are hard enough that it always takes the combined efforts of all the miners around 10 minutes to solve a block.
The more miners there are, the higher the difficulty goes. The higher the difficulty goes, the harder it is to commit fraud on the Bitcoin network.
Sudden changes in the value of a bitcoin can make or break mining operations. Granted if a drop in price knocks some miners out of the picture, difficulty will decrease to accommodate, but that takes time. Miners follow the market – the market does not follow the miners.

http://www.bitcoinwatch.com/

Bitcoin difficulty Adjustments
https://docs.google.com/spreadsheet/ccc?key=0AmcTCtjBoRWUdHVRMHpqWUJValI1RlZiaEtCT1RrQmc#gid=0

Bets of Bitcoin
http://betsofbitco.in/help
Bets of Bitcoin is a website where you can bet on upcoming real world events. Events can be anything from elections to product launches. Every bet is a statement on the outcome of these events. Bettors bet on if the statement will turn out to be true or false, in other words they agree or disagree with the statement. After the event, site moderators decide if the statement turned out to be true or not. Bets on the losing side is distributed to winners, statement submitter and the site.