I am trying to search a page for certain links only, but can't seem to find a way to have it 'search' for a 'keyword' in the links, and only list those in a ListBox - What I have now works to grab ALL the links on the page, but I need to only find SPECIFIC ones:

Code:
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, _
                              ByVal e As System.EventArgs) Handles Button1.Click
        WebBrowser1.Navigate(TextBox1.Text)
    End Sub
    Private Sub WebBrowser1_DocumentCompleted( _
                            ByVal sender As Object, _
                            ByVal e As WebBrowserDocumentCompletedEventArgs) _
                            Handles WebBrowser1.DocumentCompleted
        If (WebBrowser1.ReadyState = WebBrowserReadyState.Complete) Then
            For Each ClientControl As HtmlElement In WebBrowser1.Document.Links
                Debug.Print(ClientControl.GetAttribute("href"))
            Next
        End If
    End Sub
End Class
Any help would be greatly appreciated - I spent the last hour Googling this, and no mention anywhere on how to find only certain links...