Storing Checkbox Values To Database

Hi i am trying to store the checkbox values on my page to the database, but im stuck on what to do. I have the following code already;protected void Btn_Subscribe_Click(object sender, EventArgs e)

{SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["streamConnectionString"].ConnectionString);

string strSQL = "INSERT INTO Newsletter(emailAddress) VALUES (@emailAddress)";SqlCommand Command = new SqlCommand(strSQL, conn);

Command.Parameters.Add("@emailAddress", SqlDbType.VarChar);Command.Parameters["@emailAddress"].Value = txtEmail.Text;

conn.Open();

Command.ExecuteNonQuery();

conn.Close();

}

How do i now insert the values from my checkbox, this is how i am setting the checkbox;public void Page_Load(object sender, EventArgs e)

{ArrayList values;if(!IsPostBack)

{

//Build array of data to bind to checkboxlistvalues = new ArrayList();

values.Add("Sport");values.Add("Gardening");values.Add("technology");

AlertList.DataSource = values;

AlertList.DataBind();

}

If i am going about it the wrong way please let me know, thanks