Hi Chopa
the conversion rate for a targeted forex sites can cross the 10%, it depends as well from the country and channels the traffic is coming from.
Signals are a good idea as it gives a competitive advantage for each affiliate, as well it can give you an additional revenue flow.
I would be happy to give you more information about Forex affiliation.
sign up at our site http://www.etoropartners.com and get in contact with your account manager.
if you wish to get more information let me know.
eToro Partners