ANLP
Website of ANLP which is an independent organisation promoting standards, professionalism and good practice in neuro-linguistic planning (NLP). Provides information on NLP and links and resources, including a list of relevant publications and case studies.
Authentic happiness
The University of Pennsylvania, as part of a research project, has a list of tests you can take, including one which, they say, shows your character strengths and things that might need some work.
Centre for Applied Positive Psychology
Website of the Centre for Applied Positive Psychology which is a not for profit membership organisation established to promote the science and practice of positive psychology.
9Institute of Work Psychology
Runs academic courses in Busines, HR and organisational research as part of Sheffield University. Has a consultancy arm and conducts research. Has a list of publications.
Positive Psychology Center
US-based organisation which promotes research, training, education and the dissemination of positive psychology. Includes a number of online resources.
Psychological Testing Centre
The testing centre for the British Psychological Society has an index of tests so that you can find which one might be suitable.
Psychology Today
This American website has 76 psychological quizzes to assess your attitude to all sorts of workplace issues.