Microsoft Office's latest features...
If you haven't seen how Microsoft has taken web integration more seriously in its latest incarnation of Office, you are missing something.
You can publish a spreadsheet online - so that anyone else can not only see your figures, but also model with them. Is that of any use in education? If you have the correct plug-in installed (from the Office 2000 CD), you may want to examine the Fibonacci Challenge.
However, it is the ability to place a database on a web server, and allow people to not only interrogate it, but actually add their own data to it that really excites me!