There is a science to being an affiliate. This science involves finding an affiliate program which pays well and which offers a viable product. From there, you must decide how best to market that product. Keeping track of the income and the sales is also very important for tax purposes. All of this can make or break a person who wants to start his or her own small business using existing affiliate programs.
from Internet and Businesses Online: Affiliate Revenue Articles from EzineArticles.com