In place of writing something like:

protected string GetUrl(Information info)
if (info is News)
return ResolveUrl(string.Format(/news.aspx/{0}”, info.NormalizedTitle));
else if (info is Publication)
return ResolveUrl(string.Format(“/publications.aspx/{0}”, info.NormalizedTitle));
return string.Empty;

I would use on the presentation layer only an extension method on my business entity class of type Information to add a GetUrl method!

It would keep the business entity light on the different other layers, and add web responsibilities on the presentation layer.

And would end like so:

<a href=”<%# ((Information)Container.DataItem)).GetUrl() %> title=”<%#Eval(“Title”)%>“>

Something to test when I will install Visual Studio 2008!