Google has several products I use daily and hate to think of life without: Gmail, Google Calendar, Google Reader, and Google Notebook.
I spend the most time in Gmail, and I dearly wish that Gmail was better (totally) integrated with Reader and Notebook -- in particular, I wish there was an easy way to take an email that I've received or an article that's in Google Reader, and annotate it using the Google Notebook features.
Consider this scenario: I'm doing research for an article or something similar. I send a source a few questions via email, or send a request for an interview and get an email back with a phone number and time for a call. Google already has some integration with calendar and Gmail -- though they leave a bit to be desired when trying to auto-complete dates -- but it'd be 20 kinds of wonderful if I could take that email, pull it into Notebook, and annotate it with the interview notes or whatever, and then keep all the notes related to one project in Notebook just with a few clicks of the 'ol mouse. Much like you can already just email articles from Google Reader to your contacts.
As a side note, I'm a little concerned about the future of Google Notebook, because it shares a large feature set with Google Docs, and I could easily see Google dropping development of Notebook in favor of Docs. (Or maybe it'd just get sucked in as an extra?) I also don't see Google doing a lot with Notebook -- it's gotten a few new features recently, but it doesn't seem to be getting the development attention that other Google apps get.
One Comment
That would be an interesting feature. It'd be nice if they went one step further and had some sort of resource types for their apps, so you could associate items with each other in a more generic sense. Like associating a gmail contact with an event in gcal, or a location in gmap, etc.
If you're worried about Notebook dying out to Docs, what do you think a Google wiki-like app would do to the situation?
Are you using the Notebook plugin in Firefox? That's where it really shines, IMHO.