I released the ebook first on Smashwords, on July 21st. So, it's been almost one month, and here's my profits for that ~4 week period:

Note: Although the shown profits total $114.98, I've spent $6.82 in 6x9" bubble-lined mailing envelopes and donated two copies (one to a librarian, to increase exposure, one to my wife). Subtracting those "expenses", I've netted $95.80 in 3.5 weeks.
I've been distracted by personal issues involving ex-wife/kids/work, but I think I need to get my head back in the game and go ahead and knock out book 2. From
everything I read, multiple books, especially those in a series, help sell each other.
I've been
laboring to increase
discovery of my work. Joined AuthorsDB, Independent Author Network (man, do they retweet a bunch about my book!), Author's Den, Koobug, multiple Google+ writing groups, featured on Top Indie Authors and Featured Author on eBookOnFire, and have had a DC member blog an interview with me, and have a blog tour in the works for December. So, I'm continuing to roll the snowball...