Yahoo Search Pad is the latest innovation from Yahoo, to enable users taking note of what they search automatically, without leaving the search result page or using other tool. As Yahoo explain in more detail
Search Pad tackles this problem by intelligently detecting users’ research intent, automatically collecting visited sites, and providing simple tools for users to organize and add notes – all in one place. Users can easily edit, delete, and re-order notes they’ve taken on a topic, and then print them out or email them to friends and family. They can also save the notes to access later by logging in with their Yahoo! ID
It still in development phase, and only certain users can use this feature for the time being. I tried putting a screen shots how Yahoo Search Pad works based on their video. Hope it helps for folks who are way to busy to watch it, and those not plugged to internet broadband connection.
1) Yahoo search page shows how many notes has been saved on your current session

2) Upon browsing websites from the search result, automatically Yahoo detect your intention and will prompting a message if you want to take notes of websites you have visited so far.

3) If you say yes, Yahoo Search Pad windows automatically opened, and list down all websites visited before from the current searc. You can copy paste anything into it as well

4) Copying content from other website not in the search result, but with the seesion currently opened in another web browser, will automatically referenced that website URL.

5) Manage the notes
- Saved your current notes to your Yahoo ID.
- Print, send the notes to anyone via email.
- Manage your notes – sorting, delete.

Watch the video for more detail