Free and certified business management courses "The UK's #1 job site" (Their slogan not mine!!) offer a range of free online courses for Business professionals.  Topics include Business Fundamentals: Effective Communication, Management and Leadership: Growing as a Manager and The Digital Economy: Success through Market Segmentation.  All via their FutureLearn learning platform available to anyone that has access to the internet.  For more information go here -

An alternative if you want to study at your own pace (typically 12 months access) and recieve a digital certificate is TutorCare's E-learning Management Courses.

Their course list includes topics ranging from Staff Apraisal Skills, Mentoring for Mentors and Team Leading Level 3.   Worth a look.