Create value for that audience Particularly because you're selling affiliate products - products being offered by other entrepreneurs too - you'll want to pre-sell your products. Build value, and establish trust, by giving away lots of original, free, valuable content. This free content will also get you noticed by search engines like Google. And attract individuals searching for the particular keywords that you're writing about. If each of your web pages is optimized for a single keyword, you'll end up getting the lion's share of your leads from this content!
