"Places uses the highest encryption standards available. On the client side encryption, we use an algorithm that mixes asymetric (RSA 2048) and symetric encryption (aes-256). Therefore, your content is securely encrypted on your device before it even goes on the Internet."
"Bitcoin transactions work by sending change back to yourself. For example if you have a wallet with a previous transaction of 1 bitcoin in it and want to send your friend half of that, your bitcoin client creates a new transaction with 2 destinations - 0.5 btc to your friend and 0.5 btc back to yourself.
But there is no way to know for sure if a transaction has change in it or not. This website has an algorithm that tries to figure out which amounts are change, it does a decent job but it's still a guess."
search results can be viewed by date, relevance or a combination of both. Unlike Technorati, which determines a blog's relevance based on the total number of unique links into that blog, Sphere is taking an algorithmic approach.
RANDOM.ORG offers true random numbers to anyone on the Internet. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs.