Most Gardenweb people won't want seeds that old. When there are group swaps they only want seeds from the previous year. For 2014 swaps they wanted seeds harvested from 2013 for example.
We are all seed hoarders, but you're one of the few who will admit it! My pastor says the first step is to ADMIT. lol
You can always plant them and see what comes up. Germination rates will be lower the longer you wait.
If you want to give them away you can offer them for postage or SASE.
You can donate them to an elementary school. I donated seeds I hadn't traded to a preschool class and 42 kids got to plant their own flowers. Now they are waiting to see if they come up. That makes me feel good that someone will plant them and enjoy them. Don't know if there's 4-H groups or others who might appreciate the seeds. There's a website called Freecycle.org. You make an account in the town nearest you and it's only for things people give away--all free. You might find some takers and you'll make their day and they'll love you forever.
You are doing well to keep them stored well. Good for you. You're a good seed saver.
Heidi

Paula, I am just starting my own garden/seed saving collection, and would be interested in experimenting with them to possibly harvest the seeds from whatever might germinate.

I'll e-mail you.

Send them to twintoes :)

When someone has more time than funds, it can be a precious gift to grow out older, higher risk seeds. For some older seeds, I list dates and trade them in generous amounts to buffer reduced germination. Others that I think are particularly sensitive to age, I throw away. (New rule for self: trade out or give away by 3 yrs old.)

I still sow older seeds of a special thing, and I just sow heavily.

-Tina

Twintoes, have many tomatoe and pepper seeds. Most 2010 and 2011. E-mail if interested. dd.

Thanks dirtdaddy! I e-mailed you :)

Paula, a lot of seeds last a lot longer than 4 years. I would look up viability information on each kind of seed you have to determine whether they are useable. No, I would think very few people would want to trade seed that was that old, but you could certainly grow it.

Funny that I would come across this post today.

I just finished potting up a bunch of seeds that I sprouted in a paper towel. They were 4/5 year old perlargonium seeds and I got over 80% germ. so far!

Lisa

80% germination is great! I'd be thrilled with that % from brand new seed let alone 4+ yr old.

I'm often surprised at how sturdy seeds are. Yes, riskier to trade for when you do not know if they've been kept well.... but often fine to grow.

twintoes I emailed you back. Thanks

Paula