Along with a developer account, http://developer.Force.com provides additional resources for developers. The developer website is your one-stop place to learn more about Salesforce and its features.
It provides the following features:
Additional documentation
Online forums
Code share
All these resources can be accessed free of charge with a single developer account. Additional community blogs and recourses are available in the final chapter of this book.
If you are on Twitter, additional help can be found using the #AskForce hashtag with the Salesforce Community. You may also address the Tweet to @sforceNinja.