Started several billiards blogs at www.billiardgods.com
Good to Know Pool Stuff (weekly) - general information and tips about playing pool.
Challenge Shootouts (bi-weekly) - Testing layouts with a scoring system on shooting skills Intermediate & Advanced levels.
I've assembled content from the 8 books I've written on Pool into a 100+ page ebook.
For $1, you can download it and get a sampling (10-15 pages) from each book.
It's on Amazon (Kindle/MOBI) and Barnes & Noble (Nook/ePub). No DRM, meaning you can copy it anywhere and pass it on...