Heather MacDonald's tomato & pepper swap is where I got 99% of my variety.
When she posts her announcement in GW or Cubits, I echo it here in ATP's Plant and Seed Trading forum:
The thread "Heather's 5th Annual Tomato & Pepper Seed Exchange" in
Plant and Seed Trading forum
She does a great job of sorting through what seeds come in, and what people's Wish Lists are. She also lets you say which varieties you DON'T want (for example, those you already have or know you didn't like).
