Accreditation for e-learning

Hi

I am interested in accreditation options an e-learning programme in the UK.

There seem to be various accrediting bodies out there, although there is little way of knowing how reliable each of them are.

In particular I would be interested in people's thoughts about these three bodies:
1) 'The CPD Certification Service' (http://www.cpduk.co.uk)
2) 'Open and Distance Learning Quality Council' (http://www.odlqc.org.uk)
3) 'Resource Development International Ltd' (http://www.rdi.co.uk)

Does anyone have any experience of these organisations? Are they considered reliable and trustworthy?

Many thanks

Francis Bacon
Lemos&Crane