Hi JS, the budget and what you do depends on what industry you are in. $100 a week is more than enough for a cycle shop in hicksville, or a non competitive arena, but if you are hoping to sell mortgages, or pills, prn, casino, etc, then it is nothing. Why not post some more information about your site, and your potential customer. That will lend itself to a better debate then.
HOOAH! $100 a week is $100 a week more than we have to spend and we have top 5 sites in a 9 million results and a 7 million results search. Knowledge is far more powerful than money online. Hang at DP and learn as much as you can.
Link building.. I can offer at cheapest rates.. that is $8/hour of my SEO expert.. Usually it is $30/hour.. Feel free to contact