IT

In a nutshell, the ListView control provides a very flexible means for displaying a collection of data while still offerring rich data features like paging, sorting, editing, inserting, and deleting.
 
Usage example: let's add a ListView control to the left column in the Lessons section that renders an unordered list with a list item for each node defined in the site map [1].

Notes:

<asp:ListView ID="LessonsList" runat="server" DataSourceID="LessonsDataSource">
    <LayoutTemplate>
        <ul>
            <asp:PlaceHolder runat="server" ID="itemPlaceholder" />
        </ul>
    </LayoutTemplate>
    <ItemTemplate>
        <li>
            <asp:HyperLink runat="server" ID="lnkLesson"
               NavigateUrl='<%# Eval("Url") %>'  Text='<%# Eval("Title") %>' />
        </li>
    </ItemTemplate>
</asp:ListView> 

The LayoutTemplate generates the markup for an unordered list (<ul>...</ul>) while the ItemTemplate renders each item returned by the SiteMapDataSource as a list item (<li>) that contains a link to the particular lesson [1].
Note: To output a particular field value in the ItemTemplate, use the databinding syntax, <%# Eval("columnName") %> [2].

We can also explicitly add a bullet item for Home in the LayoutTemplate [1]:

<LayoutTemplate>
    <ul>
        <li>
            <asp:HyperLink runat="server" ID="lnkLesson"
               NavigateUrl="~/Default.aspx" Text="Home" />
        </li>
        <asp:PlaceHolder runat="server" ID="itemPlaceholder" />
    </ul>
</LayoutTemplate>  

Another usage example [3]:

<asp:ListView ID="ListView1" runat="server" DataSourceID="LessonsDataSource">
    <LayoutTemplate>
            <asp:PlaceHolder runat="server" ID="itemPlaceholder" />
    </LayoutTemplate>
    <ItemTemplate>
            <asp:HyperLink runat="server" ID="lnkLesson"
               NavigateUrl='<%# Eval("Url") %>' Text='<%# Eval("Title") %>' />
    </ItemTemplate>
    <ItemSeparatorTemplate>
            |
     </ItemSeparatorTemplate>
</asp:ListView> 

Related articles:
[1] - Specifying the Title, Meta Tags, and Other HTML Headers in the Master Page
[2] - Using ASP.NET 3.5's ListView
[3] - Specifying the Master Page Programmatically (see Step3)