I've been following the books by "Fel" for close to 10 years now. He's got some great books from both fantasy and sci-fi genres.
All new chapters are posted at
http://forums.sennadar.com/
All chapters are posted in .doc format however one of his fans has a website with all of the books posted in various ebook formats at
http://www.weavespinner.net/Worlds_of_Fel.htm
He's currently posting the story
Earth Bond which is about dragons set in the modern world.
One of the most popular book series is the Subjugation series which follows the main character's life after Earth is conquered by an alien race. It's currently 4 books long with more planned.
The first set of books he wrote is set in your typical medieval fantasy period with plenty of magic. It follows the main character Tarrin Kael. If you like long epic books this is the series to go with, it is broken into two series, the first Firestaff series is 5 books long, and the second Pyrosian Chronicles is 3 books long.
To give some perspective on the length of some of his novels here are the number of locations of a few. If you don't know kindle measurements the average novel is 6k locations. Each book in the Tarrin Kael series is a minimum of ~15k kindle locations in length with some much longer. The first book in the Subjugation universe is ~28k locations.