Here is an article about the combined-league independent baseball tryout which took place a few days ago in Arizona:
It mentions that 23 players were signed to spring training contracts in multiple independent leagues.
If you want to be notified of future independent minor league baseball tryouts then be sure to visit the appropriate links on the sidebar of the IndependentBaseball.net website; and you can click the appropriate link in the text below this paragraph.
There are several good books about the independent professional baseball leagues. You are welcome to see a list of suggestions through this link: Books Get notified of upcoming independent baseball tryouts from either of these services: first service or the second service. Prospective players can find some helpful resources here We will be providing a growing list of possibly helpful tips and suggestions on various baseball information. This will range from "how to" information about baseball skills all the way to helpful information for casual baseball fans. Please click the link for more information: Tips And How To Information