Only2Clicks - http://www.only2clicks.com
This site works like a speed dial for your frequently visited web sites- but with tabs. By setting Only2Clicks as your start page, you are at the very least only 2 clicks away from your most frequently used webs sites. Only2Clicks generates a snapshot image of the web site for you automatically. You can choose to upload the image or not! With this feature you will be able to quickly eyeball each site before figuring out where you want to go.
Scrible - http://www.scrible.com
With Scrible you can bookmark pages and highlight and tag specific information within a webpage for future viewing. YOu can tag your information for later viewing. You ca add notes to highlighted webpages so your thoughts and ideas will not be forgotten. It is very easy to drag and drop the toolbar into your web browser.
Symbaloo - http://www.symbaloo.com
It is the easiest start on the internet. You can discover pages with the best links about a subject and create your own pages with favorites. Share your page with the rest of the world and get access to all of your webmixes anywhere in the world. This site allows you to access bookmarks of your most frequently used websites from anywhere and it’s free.