We've got to come up with a better way to catalog Web Parts -- any ideas?

We've got to come up with a better way to catalog Web Parts -- any ideas?: "We know that there are as many, probably more, Web Parts than there are portlets for any other portal vendor, but we need to be able to prove it. We need a way to list every Web Part in existence. I am very, very open to suggestions. I'll tell you what's been tried that hasn't really worked to date:
We maintain a Web Component Directory at http://www.microsoft.com/sharepoint/downloads/components. It was intended to provide a Yellow Pages environment for administrators and power users. It includes Web Parts, but it includes other things as well. The unit of enumeration is companies' solutions, not individual Web Parts. We've supplemented it with a list of all known Web Parts that are in the box when you get several MS products, but that kind of confuses matters.
There are developer-to-developer Web Part projects or samples on http://www.gotdotnet.com and other sites, but there's no attempt to provide a comprehensive list.
There are some third-party for-profit sites like http://www.gotsharepoint.com and http://www.msd2d.com that offer catalogs of Web Parts, but there's no attempt to provide a comprehensive list, either." .....

EROL MVP SPS