I was looking around DjangoSnippets.org last night and had been using the "site: djangosnippets.org" in google to be able to search the site. To make life easier I've knocked up a noddy greasemonkey script to provide a basic Google powered search box (in the header) across DjangoSnippets.org.
It goes without saying you'll need Greasemonkey installed. Once you have Greasemonkey, clicking the following link should prompt GreaseMonkey to ask you if you want to install the script: Install django_snippets_search.user.js