Google Notebook Alternatives
Google Notebook was discontinued by Google, but don't worry we have compiled a list of Google Notebook Alternatives:

Zoho Notebook
Online Notebook application: Zoho Notebook lets you combine text, images, audio, video, RSS feeds, documents and much more. Online Collaboration: You can share a single image or selection of text from a page rather than the whole document, giving the author absolute control over what information is shared with others. Notebook also provides real-time collaborative editing. Firefox plug-ins for instant web clipping; Skype integration for instant chat and IP telephony.

Notepin
Notepin offers a dead simple way to create public notebooks for free, with no registration required. And for a small premium, you can upgrade to password protect your notes.

GNotes
GNotes is an Android notepad/notebook that can synchronize with Google GMail.
GNotes is a notepad design in mind for easy note-taking. What it do is to help you taking notes easily on mobile phone and sync all of your notes with GMail. You can easy access your notes online, and you’ll never loss it!

Gubb
Gubb is a free web-based application with an easy-to-use interface that enables you to create, manage and share an unlimited number of lists, as well as retrieve whole lists by text message & email.

list.it
list.it is a simple, free, open-source (MIT-license) note-keeping tool to help you manage the tons of little information bits you need to keep track of each day. Installs as i Firefox add-on.