How to implement something similar to Google notebook?

The idea of Google notebook is great. I want to implement something similar to Google Notebook for a project in my company, but I am not very familiar with Windows programming. I do not know how to implement the notebook window and the small notebook icon at the right bottom corner.

Can anyone give me some tips how I can get started such as:

1. Which programming language is better and easier to implement for this notebook? C++ or C#?

Which API and windows control should I use to implement the notebook window.

2. I studied some MSDN document and found out how to add a new item in the browser's context menu, but I could not figure out how to create a small icon in the browser's right bottom corner. How?

3. Any other stuff, sample code or document if you think it is helpful.

thanks in advance,

Qiang