I've used SR before, I just have no idea where to go for information on becoming a vendor, how much it costs (still $500?), or who I'd contact on SR. Is SR still the biggest market place (i.e. the default marketplace you'd sell on if you were to sell on only one)?
I'm behind Tor. Sorry for my ignorance. I tried looking on the SR forums and Google.
I found the old seller's guide.
Let me be honest: Most of this community will have very little respect for you if you chose to vend on SR2. SR2 was subject to much money stolen a few weeks ago.
Your best bet is to take a look at the sidebar here. take a look at each of the markets and their respective forums. There you will find info on vending on both places.
A few places like Evolution and BlackBank don't require a fee to vend.
Markets to avoid: Druglist. UltraVioletCity.
Do your own research and make the best decisions for your customer.