If you are an orkut addict, happen to use Firefox as your web browser and have been looking at efficient ways to scrap-chat, I have got a good news for you!
Click on this link, download the extension, install it, and enjoy!
Once installed, this extension lets you reply to any scrap posted to your scrapbook, without the need of following a two step process of first going to that friend’s profile and then going to his/her scrapbook! A brilliant extension! I intalled it just now (took me less than two minutes) and I should say it’s a cool idea.