Yeah. That would be me. We have a pretty flexible topic model, which let's you build authority networks within those topics. So for example, we have a super cheery one called "brain disorders' (mostly neurooncological); and things that are a bit broader like 'Web development frameworks'; as well as things like "space science" etc. anything missing, let us know and we'll probably rope you in to help us. cheers aa

Spam is liberating (http://radio.weblogs.com/0108150/2002/08/23.html# a94) With SpamAssassin, my spam is down to about two messages a day (clever spammers). Whitelist your known correspondents and filter your whitelist messages into a priority folder. Once a week check your unwhitelisted messages for real correspondents. It's a darn site better situation than four years ago when I used to receive 100 spams a day with no useful way to check for them....