My LiveJournal
which is carrying much of my technical content, pending
improvement of my local blog tools
Technicalities,
my MIT blog - low traffic because it's a weak implementation
(in terms of features, not just because it uses ASP.NET) and
because a Safari bug gets in the way of posting. (Too bad it
has the good name...)
Reddit
comments which are also in the trackforward feed above
FriendFeed which
doesn't have anything that isn't on this page, it just glues it
together chronlogically.
Google
Profile which is almost as circular as FriendFeed is
LibraryThing
which only has a couple of shelves so far, but should soon
become my main reference, with ISBNs mirrored to Google "My
Library" for search.