VB.NET
* Public Class Form1

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim StringFromWeb As String = New System.Net.WebClient().DownloadString("http://vnote.kr")
RichTextBox1.Text = StringFromWeb
End Sub
End Class 
New System.Net.WebClient().DownloadString(url) 이용한 소스불러오기