Well... I think you answered your own question there ;-)
I think stuff is probably on http://riaforge.org/index.cfm?event=page.category&id=1 these days. Or maybe here: https://github.com/languages/ColdFusion.
Unfortunately, Ray doesn't make it easy to monitize your application.
Oh right. I forgot about that side of things.
However the fact that the Developers' Exchange has fallen by the wayside and the freebie community-focused ones have arised in its place... does speak to something.
But, yeah, doesn't help you, does it?
Sorry... dunno what else to suggest.
It appears to be dead now. The ColdFusion Exchange has been replaced with a collection of Add-ons for everything but ColdFusion.
Here's an past view of it using Archive.org:
What happened to all of the content? I don't ever recall any official announcement. Was there a tweet or blog entry that I missed? There's no message on the new site indicating the obvious absence of ColdFusion. (If you notice the ID in the above URL, ColdFusion is ID#1 and appears to have been the first product line added to the "Adobe Exchange".)
The simple explanation is: Coldfusion is dead (just like Cobol is dead), even though you can find legacy code all over the net.
The fact that Adobe has put it in a closet, tells you all you need to know about ColdFusion.