via SiT[Re: Weblog Madness: Roll Your Own] - Daniel Schneider's Portals Pointers @ TECFA

"Portals" is used in a wide sense here. We focus specifically on collaborative information portals, but sometimes have pointers to any sort of portal software, e.g. enterprise application integration (EAI software), "smart" Forums and News Pages, Enterprise Information Portals, even a little bit of CSCW or Groupware systems. You can find more variety in this older page. We specifically do NOT mention educational platforms here.

A nice collection of links to resources. Again, no mention of Conversant so I'll drop him an e-mail suggesting that he add that to his list.