Promoting Multiple Websites through Single Merchant Account

Hi All,
We would like to promote our business through CJ, Shareasale and Linkshare networks. Merchant account setup fee for the above mentioned networks are expensive. Please anyone of you guys clarify us on the below points.

Can we promote multiple websites through single affiliate account.
Can we change the website in similar industry or different industry
How do we promote multiple products from different websites.

We are eagerly waiting for your comments/suggestions.
Thanks.

See original post by mikesb