Hi jonnzy45. Welcome to NGA!
New NGA seed swaps are posted every so often. Most of them try to pick dates after many gardeners have had a chance to collect seeds from their gardens, (Fall) yet before many people had to get their winter-sown seeds started (Dec-Jan).
If you check the Seed Swap Page that Dnd pointed out monthly or so, you should see any new swaps in time to join.
BTW, if you misplace the link, you can do to the NGA Home Page.
Click on "Tools & Apps", top-center in the Home Page.
Click on "Seed Swaps".
You might also be interested in the "Seeds Forum", or the "Plant and Seed Trading Forum".
<-- "classified ads" & group purchases
The first two forums are also good places to advertise a swap that you might organize, request or offer certain seeds for one-to-one swaps, or try to convince someone else to start a seed swap with a certain theme.
Are there particular kinds of seeds you're most interested in, like veggies / annual flowers / ? Your profile doesn't mention your particular interests.
We seem to have a huge crowd of people passionately into day lilies, if that's your thing.
It's probably better to join a swap or two before taking on the work and time of organizing one yourself.
My hobby is Asian Brassica greens like Bok Choy, Michihli Chinese cabbage, tatsoi, etc. Snap peas and snow peas. Lately I've been "into beans" and trying to find a lettuce I like.
Again, welcome to NGA! These forums tend towards chattiness, almost like "social media", but still have many very experienced gardeners lurking or chatting socially, who answer gardening questions when they come up.
(When threads drift into chattiness, you might have to "page down" a few times to get back to the original topic. It's a good gift to the community, if you have questions remaining from some thread that degenerated, to start up a NEW thread yourself, focused on the aspect of the old thread that you have more questions or comments about.)
I hope to see you in future seed swaps!
The software that Dave wrote makes it really easy, and you can add your seeds to your swap-list either by just typing in the name that you
use for them, or by letting the software suggest database entries as you type partial names.
The advantage of accepting the "database name" is that your seed offering will alphabetize next to other people's offer of similar varieties. Also, traders can just click on the database link, and see details and photos of the variety you're offering.