Well, I have been playing with Avalon for a bit. One of the things that I have been playing with is a RSS viewer, just a little hobby. Viewing blogs were not difficult, but the displaying of the HTML from the RSS is where the problems start. But what you really need to do is use a converter and then put it into a FlowDocument. At the following location you can download a XAML/HTML Converter. http://wpf.netfx3.com/files/folders/developer/entry816.aspx
If you take this code and add it into a class library on it own. You can then do the following code:
This code is part of a UserControl where the Loaded event executes the above code. This is the corresponding XAML code:<FlowDocumentReader Name="rssBlogText" ViewingMode="Scroll"HorizontalContentAlignment="Left" IsPageViewEnabled="False" IsPrintEnabled="False"IsFindEnabled="False" IsScrollViewEnabled="True" IsTwoPageViewEnabled="False" Zoom="75"ScrollViewer.CanContentScroll="True" ScrollViewer.VerticalScrollBarVisibility="Disabled" ScrollViewer.HorizontalScrollBarVisibility="Disabled"/>
This will allow you to see the resulting converted XAML in a FlowDocument. Try it and let me know.