Was it Blast Media? This old SvN blog post from Dec 07 talks about how they used them on a free trial: http://37signals.com/svn/posts/741-ask-37signals-10-ways-to-...
another reference: http://37signals.com/svn/posts/307-what-do-you-want-to-know
How do I remember all this junk and not stuff that really matters?!