Google Notebook

The browser-based tool permitted a user to write notes, clip text and images, and save links from pages during a browser session.

The information was saved to an online "notebook" with sharing and collaboration features.

Clicking on it opened up an AJAX user interface near the bottom right of the screen just like the extension, but without the need for installing a browser add-on.

There was not an option to export notes as text (txt format) files.

[1] Almost immediately, Evernote launched a Google notebook importer on January 22, 2009.