You can either use
<h:outputText value="#{param['id']}" />
or
<h:outputText value="#{request.getParameter('id')}" />
However if you want to pass the parameters to your backing beans, using f:viewParam
is probably what you want. "A view parameter is a mapping between a query string parameter and a model value."
<f:viewParam name="id" value="#{blog.entryId}"/>
This will set the id param of the GET parameter to the blog bean's entryId
field. See http://java.dzone.com/articles/bookmarkability-jsf-2 for the details.