Автор: http://www.swissdelphicenter.ch

procedure TForm1.Button1Click(Sender: TObject);
 var
   i: Integer;
 begin
   for i := 0 to Webbrowser1.OleObject.Document.links.Length - 1 do
     Listbox1.Items.Add(Webbrowser1.OleObject.Document.Links.Item(i));
 end;


 {*****************}

 { if there are frames }

 procedure TForm1.Button2Click(Sender: TObject);
 var
   u : variant;
   v : IDispatch;
   s : string;

   procedure RecurseLinks(htmlDoc: variant);
   var
     BodyElement : variant;
     ElementCo: variant;
     HTMLFrames: variant;
     HTMLWnd : variant;
     j, i : integer;
   begin
     if VarIsEmpty(htmlDoc) then
       exit;
     BodyElement := htmlDoc.body;
     if BodyElement.tagName = 'BODY' then
     begin
       ElementCo := htmlDoc.links;
       j := ElementCo.Length - 1;
       for i := 0 to j do
       begin
         u := ElementCo.item(i);
         s := u.href;
         listLinks.Items.Add(s);
       end;
     end;
     HTMLFrames := htmlDoc.Frames;
     j := HTMLFrames.length - 1;
     for i := 0 to j do
     begin
       HTMLWnd := HTMLFrames.Item(i);
       RecurseLinks(HTMLWnd.Document);
     end;
   end; // RecurseLinks 
begin
   v := WebBrowser1.document;
   listLinks.Clear;
   RecurseLinks(v);
 end;