how to contact affiliate managers?

[Witness]

I'm currently making a gambling site and want to offer my visitors no deposit bonuses. What is the most effective way to get in contact with affiliate managers that are able to offer me such a deal?
Will I have to contact each casino individually and ask for an offer, or is there anywhere I can post my preferences and get contacted by managers myself?

TY

[mojo]

I always think it's best to write individual personalized emails to AM's. Thus building a relationship. AM's are your lifeline. They will also most likely want to know your plan.

You can find the contacts on the affiliates sites or click a profile here. If you post a generic post, you may get replies from less than desirable programs. This way you can choose and research your chosen program by googling them (for aff and player) issues and warnings.