on this page :
there are some links in the Qt tools area :
Qt Designer Manual
Qt Linguist Manual
Qt Assistant Manual
Qt qmake Manual
Add-On Products and Services
some of them point to
http://developer.qt.nokia.com eg. "Qt Designer Manual" which is as expected.
other point to
http://doc.qt.nokia.com eg. "Qt Creator" . There you don't get the possibility to add notes, tag .....
is this work in progress or is it good I mention it here?