not much info on prices for selling things on the web yet, that i've seen. havent looked much for that, though.
i'd suggest you find a broker and browse the market for pricing on your server and in your city. bear in mind the work and coin it takes to produce some of those items you might think are *fastcash* may in fact render them cost-prohibitive.
as far as how to's and recipes, my fav has always been
eqtraders, but they're keeping up with 2 games atm, so they're having resource difficulty.
this site has a lot of recipes, and is fairly easy to navigate, but, the last time i looked, not much on "how to."
and, as far as making coin goes, i've found the best way is to do tons of quests, as the rewards can be coin, or an item, or both. and if the item isnt usable, you can sell it to a vendor. my scout had over 1400 copper (14 silver) in a couple of hours just running quests, with harvesting thrown in. i hadnt even bothered to look at it until i went to bank some forages, and scared myself with that :).
Edited, Mon Dec 6 15:42:24 2004 by runyariel
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EQ: Runyaessz, 5 Monk, Phinigel
EVE: Runym/Runyn/Runyl, 43M SP each
SWTOR: Pardoric, 22 Merc, on vaca
EQ: Runyariel Varyuvantel, 65 Enchanter, Tarew Marr, on vaca
LoTRO: Runyarian, 38 hunter, Vilya, on vaca
WoW: Runyarian, 70 hunter, Muradin, on sabbatical
EQ2: Runylala, 25 Troll Bard, Qey, Blackburrow, retired
WAR: Runyael, 30 DiscO Khaine, Ironfist,retired.
CoH: Hissing Chicken, 16 Scrapper, Pinnacle, retired