While there have been gateways to Freenet on the web in the past, it was presumed most of them vanished without a trace.
(This page will be going away April 15, 2006. However, a non encrypted version is now available at http://blcss.com/cgi-bin/fr.pl
. If I get enough donations I may bring back the SSL gateway. - Rowland)
Note, however, that you potentially lose your anonymity while surfing the freenet-content on that gateway.