Couple questions,
what are terms, are these backlinks? If so, what is the difference between linked and unique?
What links are better, internal or outbound? Are internal links inbound?
How long should you expect to rank in a term with 300 million results if seo is done right? Though you cant put a time line, what do most people expirence?
3 Months, 6 Months, a year?
Having a Yahoo Directoy listing help your seo rank?