I've just recently gotten into the Kindle serials. Two have excited me so far! Gooseberry Bluff Community College of Magic: The Thirteenth Rib by David J. Schwartz may be complete. I can't tell from here. Give it at least through the first part because it isn't what you think it is! I'm really enjoying it. The other serial is Indexing by Seanan McGuire. I cannot gush about this book enough! If you like fairy tales, this book may be for you! It's on the fifth section and getting better and better. Also, follow Seanan on Tumblr because she is funny and insightful and definitely entertaining!