I just stumbled across www.swedenborgstudy.com. The tagline of the site is "Books, articles and sermons based on the Writings of Emanuel Swedenborg" and it has an astounding amount of New Church collateral literature on it in html form.
The site is run by Ian J. Thompson. I haven't had a chance to look around the site much but here's what I've found so far. He has a long list of books of New Church collateral literature available in complete form on various web sites. He has "the Brighton Lectures" by the Rev. Jonathan Bayley which I've heard are quite good (look towards the bottom of this page). And he also has a list of web sites about Swedenborg, some of which I've never heard of.
Let me know what you find there.