The past five months or so saw less apologetics posts on the blog than usual (which no one but me probably noticed) because I was working on The Book. I was spending most of my intellectual recreation time writing the book, so I was tired of writing and thinking about apologetics when it came time to blog.
Apologetics is by nature contentious, which makes it both invigorating (at times) and utterly wearisome (at other times). I was really into it for a few years around the time I entered full communion with the Catholic Church, but after facing the disappointment of realizing that none of my former Evangelical roommates and good friends were convinced of the Catholic Church’s claims, even after our many lengthy discussions, I took a break from ecumenical dialogue and Catholic-Protestant discussions. I immersed myself into the Catholic Faith: the saints, the priestly vocation, the theology of the body, and devotional reading (Imitation of Christ, My Daily Bread, St. Therese of Lisieux, St. Teresa of Avila, St. John of the Cross, and so on).
But it came back. Beginning fairly innocuously a few years ago with some discussions amongst friends of mine on ecumenical issues, the momentum began building again until the present time, where I find myself writing an entire apologetics book!
I am not wearied by apologetics this time around, though I don’t doubt that I will need to take periodic breaks from it. The internet fights and (often) long email discussions can really take it out of you. It is kind of like doing battle: You gear up, you charge, you fight hand-to-hand, you get bloodied and wounded, then you go to your castle to convalesce and heal for a while.
One last thought on apologetics books, specifically Catholic ones: I have a bunch of the well-known ones (Shea, Currie, Ray, Keating, Howard, Hahn, etc.) but it seems like they were all written from the mid-80s to late-90s and that there is now a drought of Catholic apologetics books. Have you noticed this trend?
Well, if it is a trend, hopefully that will increase the demand for my book. 
The question is is how has ecumenical dialog changed in the past 10-20 years? The methods certainly have changed as you have alluded to (blog, email). How as Catholics should we appropriately and effectively evangelize in the modern era? I think you’d have a best seller if you’re book addressed these changes. All being said it probably should be available on the Kindle.
The problem is that many of the arguments are timeless. If you read a book by St Francis de Sales or Cardinal Newman they are remarkably similar to the books written in the 80′s and 90′s. That is because while protestantism changes the reasons why it is inferior to Catholicism really have not.
I guess that is not a problem. It is a problem when you want to find something fresh and new. The reality is many of these arguments are not well understood by protestants or even Catholics. I know I was a pretty well read protestant and fellowshipping with a lot of Catholics and had no clue about the basic reasoning behind Catholic apologetics.
Will one more book fix it? It won’t hurt. All I can see to do is chip away at the ignorance as much as we possible. That is why I keep writing. Better to light a kindle …