Google Bookmarks is a web-based application that lets you save shortcuts to your favorite webpages online. Unlike browser bookmarks that are stored on a single computer, Google bookmarks are stored in your Google Account. This means you can access them from any computer with an internet connection .

I use different computers for different reasons and each of them have their own set of web browsers and their own set of favorites. Without Google Bookmarks, I have to export my favorites from each computer to my flash drive and them make sure I have the flash drive with me.

I do that anyway but with Google Bookmarks, I have an online backup of my favorites which would have come in handy when my web design notebook was stolen last year.

Reference: http://bookmarks.google.com