QCA - Qualifications and Curriculum Authority
http://www.qca.org.uk
This site can tell you about academic and vocational qualifications including key skills, basic skills, A levels and NVQs, plus the odd bit of interesting research.
Scottish Qualifications Authority
http://www.sqa.org.uk
The national body in Scotland responsible for the development, accreditation, assessment and certification of qualifications other than degrees.