Here (or here – in case it moves again) is a post I found and stashed away some time ago listing all the different inline server-side tags with examples. There are seven:
<%...%>runs normal code<%=...%>is equivalent to Response.Write()<%#...%>is used for databinding expressions<%$...%>returns the value of an expression, and can be used in parameters (note: expressions are not code – see here)<%@...%>is for page directives, usually at the top of the ASPX file<%--...--%>is for comments<%:...%>is the same as<%=except it HTML-encodes the value