Nick Hardesty, graduate theology and catechetics student at Franciscan University of Steubenville, has put together a superb blog, phatcatholic apologetics. Especially noteworthy is the excellent and comprehensive sidebar, where you can find just about everything you need, by way of official Catholic sources, and other helpful aids for apologetics and theology. Nick wrote an explanatory post about the sidebar to help folks better understand and navigate it.
Great job, Nick! Y'all make use of this wonderful resource, now. This is the next generation of Catholic apologetics.