There is NO CHARGE for being a vendor here on HydrogenTechnologyToday.com.
List as many items new or used as you wish.
We want to be able to recognize you as a vendor though if you are one, so please select the category you best fall into.
ScopeTrader is the greatest place online where Astronomers can buy or sell
Astronomy related equipment, period.
There are other areas on the site such as the forums, blogs, astrophotos, and more - but the premise of the site is equipment buying and selling.