Research Papers

Hay guyz, some months ago there was a tremendously wankery thread over how terrible PDFs are (OH SHI- can of worms) and how blah blah blah octet-streams, but as an example, someone linked to a site with searchable research papers from all kinds of disciplines as an example of why PDFs are actually good.

I wish I could still find it; does anyone know what I'm talking about?

Citeseer is good for computer science. Arxiv has this, and lots of physics too.

BTW, PDFs are not that good as a document archival format. They're much better than Word (which of course, is a document editing, not archival format), but still inferior to IDPF.