Google have announced that they are to discontinue certain services. Google video will cease to allow uploads within the next few months while it has also been announced that Google Notebook development is to halt. Although from what I have read Notebook will remain as a service.
Google Video is no surprise as they now have Youtube. Notebook is a shame as I use that function quite a bit and find it useful for gathering research stuff.
The other service to end is Jaiku the microblogging service that never was. However, I have read that Google will release the source code for Jaiku under an Apache license so over developers can pick up the code and use it.