Forbes article on "GPL hit men" mentions PostgreSQL - Mailing list pgsql-advocacy

... sort of.  As an afterthought to a discussion of the Progress/NuSphere/PeerDirect tussle with MySQL:

"Now he says he is cautious about working with GPL software. Instead, Progress uses an open source database program
distributedunder the less onerous Berkeley Software Distribution license." 

http://www.forbes.com/2003/10/14/cz_dl_1014linksys.html

As the FSF gets more and more ambitious with their GPL enforcement, this further highlights the business-friendly
natureof the PostgreSQL BSD license.