self promotion on this newsgroup ?

What's the generally accepted practice for self promotion on this newsgroup ?
As in I hope to "unveil" my website soon where I offer some kits. I was thinking of maybe just one single "formal" announcement, with nothing more than a hyperlink to the site in my signature in all future posts. Maybe a specific announcement here and there for a new product, etc.

I have gathered that this is more or less acceptable, but I did want to make a specific post to see what feedback I get.

Thanks !
JCD
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