From RDFaWiki

This is a page for templates that can simply be cut-and-pasted into your pages.

FOAF

Getting started with RDFa: Creating a basic FOAF profile, by Mark Birbeck.

Calendar/Events

How to do hCalendar in RDFa by Steven Pemberton

SIOC

RDFAiser votre blog, la théorie et la pratique, in french by Gautier Poupeau on Les petites cases.