One of the websites I maintain is The PowerPoint Apologist, which is designed to provide free, polished PowerPoints on various Christian apologetic topics. 
To date, there are over 150 presentations on the site that can be downloaded, modified, and used. The files can also be obtained on my Slideshare site as well.
In the past few months, I’ve teamed up with Brian Auten of Apologetics315 to create a new apologetics series entitled “The Essentials of Apologetics” designed to systematically work through key apologetic topics in a way that can both supply evidence for God to unbelievers and also school Christians in truths that can help them defend their faith.
The first three presentations are posted now and available for download, with more to follow in the coming months. Please feel free to use, comment, and pass along to others.
powerpointapologist.org is a broken link. Is this resource no longer available? I can still find some of the same powerpoint presentations on other sources, but not at that link.
Great resource. Thanks for sharing this.
“…completely free of charge” !!!
A great big round of applause for all those fantastic apologetics resources which you guys provide. Thank you!