My go to site for quizzes, assessments and resources for personal and professional development is MindTools.com.
This site has 1000+ pages of resources conveniently divided into an array of categories:
Access the main page here: MindTools.
From their “The Toolkit” Page
Use links below, in the menu on the left or on the Toolkit menu above to access the Mind Tools toolkit.
Whether you’re in a leadership position now, or you’re working towards this, you can become an exceptional leader!
Learn the full range of skills you need to manage a team successfully.
We’ll show you the strategy tools taught on MBA courses, and how you can apply them to your situation right now.
Devise better solutions to the problems you face by using the skills set out in these articles.
Add some rigor to your decision making with these tried-and-tested approaches and processes.
Find out about the formal disciples of project and program management and change management.
Beat work overload, increase your effectiveness, and achieve more.
Learn a range of techniques with our holistic approach to reducing stress.
From listening to writing emails, running meetings and giving presentations, these tools are vital to your career success!
Learn some powerful and reliable ways of generating the fresh, new ideas you need.
These articles help you handle information better, learn more effectively and remember things better.
Don’t leave your career progression to chance! Find out how to develop the career you want.
They also have memberships for individuals, organizations and businesses to use in their HR / People Development strategies. Find out more here: MindTools Corporate.If you know of other great sights, or have observations/critiques on this one, I’d love to hear your thoughts.