Need help with checkboxlist to database

Hello, I'm currently working on a webpage in Visual Studio 2008. The page is about adding websites and info about those websites into a database.

Now here is the problem:

On the webpage you can select the subjects from a checkboxlist. Can someone help me on how to put the selected items into the database using C#?

I'm pretty much of a C# noob so I need all of the code.