Hello! I'm researching now about anonymity in Altcoins. Found a lot about Bitcoin troubles, Darkcoin drksend and now faced with CryptoNote.
this is the scheme of darksend:
http://i61.tinypic.com/2jbwg2u.jpgcryptoNote: do you have some?
I found a lot about ring-signature but is it all that cryptonote is?

Could you help me to find all-in-one scheme with cryptonite and give any advantages or disadvantages of cryptonote in comparison with darkcoin?
P.S. Could you give me examples of the other anonymisation schemes using in altcoins (with altcoins example)