What do you mean? Darksend is working only on masternodes, isn't it? So they are strongly wired together and therefore I meant not DarkSend alone but a bunch of MNs + DS, OK?

Masternodes perform the coin mixing service of DarkSend which anonymizes transactions. Users get rewarded with 20% of the mining output per block (without actually performing any mining themselves) through a "voting mechanism".
Masternodes require 1000 DRK to be set up as a negative incentive that disallows one party running or controlling too many of them.
In the future Masternodes, or the Masternode-payment system, could possibly be utilized for providing other kind of services, like blockchain hosting for thin-client functionality.
http://wiki.darkcoin.eu/wiki/FAQ#What_are_Master_Nodes.3F

Also, excuse me for not being acolite or prophet of darks - that holy mission is yours. Just imagine - not all the lame's questions itt are FUD.