internet

I want to start a new branch of my businness (Q) and call it (R). I want (R) to be completely operated (where possible) by the new emerging Internet (I) and eCommerce (eC) method(s) (M). I want (R) to specialize in 3 markets: (X), (Y), and (Z). And I need two (M)’s to : (M1), determine and collect all related imput words to my products and funnel them to my web site (WS), and (M2), assure that my (WS) is allways # 3 (on the 1st page results of the customers search). Also, for ex., (Y) may split into two major product lines (PL)’s, (PL1) homemaker and (PL2) professional. Where they may differ is in: performance, margins, cost, quality, quantity, etc. But the sales volume may differ by >> than 1000 to 1. How do I determine if it is worth having the one or two (PL)’s for (Y) or n (PL)’s for X, Y, and Z, and still make a Profit on all factions of my new (R). Do I need a mail or Internet catalog. How do I find best suppliers,shippers, and accounting (all pass thru). Please respond.