pce-literature.org - searchable online database for person-centred research
According to the site, the database stems mainly from the bibliographies of the World Association for Person Centered & Experiential Psychotherapy & Counseling (WAPCEPC). It is aimed specifically at researchers, students, and psychotherapists, but is equally available to a wider public.
There is a lovely and clear 'how to' link at the top for first users and a (rather subtle) 'EN' link at top right for English-speakers.
After just having read Hal Lyons lovely book On Becoming an Effective Teacher, I tried out the search term 'teacher' and got two pages of results, many of which I hadn't seen before. 'Neuroscience' brought a rich handful of references relating findings from that sphere to the person-centred approach. This site is going to become a firm friend indeed...