http://sharpelvessociety.blogspot.com/, and his Twitter page at https://twitter.com/JaneAustenCode (@JaneAustenCode). His personal email address is also provided on his blog profile.
Arnie would love to hear from any members who have follow-up questions, comments, corrections, etc. If there is enough interest (meaning, say, 4-5 people) who are interested in gathering informally at a Starbucks or the like on a periodic basis (monthly or every other month) to toss around Jane Austen's shadow stories with him, he would be very happy to take the lead on that, as long as it never conflicts with any of the chapters scheduled book group meetings or special events, which must come first. Please get in touch with Arnie directly if you are interested.